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Really good introduction with a lot of information, but I'm really glad that I did this from the archives rather than live so I could take the time to review the slide content.

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Currently most interested in 802.11 (not that I'm convinced anyone is tsill reading these comments! :-) )

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Is this course still available? Audio is taking a very long time to load!

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Can the audio files be made downloadable? That would make it much easier to use these courses while communting.

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most interested in 802.11

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most interested in 802.11

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embedded and instrumentation h/w design and test, f/w support and test.

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Hello all from Edmonton, Alberta.

It's been a long time since I attended a lecture here. My schedule has changed again and now have time for more Continuing Ed.

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Interested in learning more about LTE and 5G.

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a lot of information to digest. 

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another source of information

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just missed earlier part

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good presentation

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thank you for the excellent presentation!

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Sorry for missing the lecture. I am a project engineer active in smart sensor networks for industrial applications.

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Sorry I missed the lecture. Trying to catch up now. I am a firmware engineer currently working in embedded medical devices. Looking forward to the course.

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at the moment I am just starting into wireless but will need to be wifi speeds at least. this class is data gathering on my part

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acohenjr

   Thank  you

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more detail on communication standards

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Embedded Hardware Developer

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Thank you Fanny; excellent presentation

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Hey can anbody tell me watz da time of the lecture? I am staying in india plz tel me the Indian Time. thnx

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Thank You very much

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thanks for a good info

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good day to all :)

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I will be unable to attend rest of week due to work considerations. Will these be available as recordings?

 

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Define "short range"

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Looking to learn the latest standard and what's beyond.

 

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Interested in how aspects of 802.11 might be simulated. Which parts might be pertinent to high level simulation. Also learn more about the technology from a general interest point of view.

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design / project management

ccraft

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Hardware & Software combined.

 

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Trainer in Simulation Technologies including ESL and TLM

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Thanks for the great presentation

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Thank you Fanny, Great Lecture

 

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Thank you Fanny. Will see you tomorrow.

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Thank you. Would WiFi Direct also look at 802.11af ?

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as i understand it, bandwidth must fit inside channel width. BW must be less than or equal to channel

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definitely see u tommorrow...

 

Thank you Fanny and Alex, now is the time to review all referenced material

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thank you all very much for the great questions!  i look forward to seeing you tomorrow.

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wider channels allow higher symbol rates

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the unlicenced 900 MHz band does not interfere with the GSM quadband

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and channel width is bandwidth?

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channel frequency matters also because due to the physics of electromagnetic propatation, the higher the frequency the higher the signal loss, so based on the Shanon channel capacity law, higher signal losses result in lower SNR, so higher frequencies, too, result in less throughput and less range.

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Thanks Fanny, looking forward for tomorrow's lecture

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Fanny, you rock! thank you

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Hi Fanny,

The 900MHz Band fopr 802.11af, would it affect the GSM band 900MHz , deployed in Asiua and Europe ?

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the throughput vs. channel width is explained by modulation.  the wider the band, the higher the data rates can be.  you really need to get into the modulation theory to undrstand why wider bandwidth results in higher throughput, so look at any modulation starting with AM, FM, PSQ, QPSK, QAM, etc. for symbol rate vs. channel width concept.

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assuming carrier is rationally chosen

 

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throughput is always bandwidth, not carrier freq

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As a follow up to joe_hufford:  Is there a resource that clearly explains differences in the channel width 20 vs 40 and 80, 80+80 and 160 MHz as well as the numbers shown in slide 8 and what produces one stream in the other standards while the n-standard can use multiple streams because of MIMO technology?

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But why does the wider channel do that? Isn't the throughput and range more dependent on which frequency the channel is centered on?

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shanon law governs channel capacity.  channel capacity is a function of distance, bandwidth and SNR.  for MIMO systems channel capacity is also a funciton of correlation - the lower the correlation among the MIMO antennas and paths the higher the capacity of the channel.

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the wider the channel the higher the achievable thorughput and range

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less bandwidth = less throughput

 

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yes - there is always a tradeoff between data rates and distance, all other things being equal :)

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What's the significance of the channel width, 20 vs 40 or 80 MHz?

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So it will always be a trade off between data rates and distances? 

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Increasing the range is being done in two ways:  802.11af and 802.11ah stanards scale down the data rate to lower rates and also operate and lower frequencies.

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Typically the higher the frequency the higher the path loss through air and through obstrucitons like walls.  That's why 900 MHz is preferable for long distance communications and for penetrating through buildings, whereas 2.4 GHz and 5 GHz technologies exhibit significantly less range and higher losses through walls.  60 GHz is much higher frequency, so almost no signal penetrates through walls and even in the air the losses are quite high.

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JuanP question:  The new working groups are providing much higher speeds. This is great. But what about increasing the range?

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My earlier question was:

 

The new working groups are providing much higher speeds. This is great. But what about increasing the range?

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JuanP question was:

 

The new working groups are providing much higher speeds. This is great. But what about increasing the range?

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link on slide 19 worked for me :http://www.bbc.com/future/story/20121005-building-the-crash-proof-car/1

 

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Juan, can you please re-type your question?  I cannot seem to find it.

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Excuse the ignorance i am new to RF but

 

Q: Why does 60GHz not penetrate walls very well?

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Fanny, please answer my earlier question.

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60 GHz does not penetrate walls very well, which is a good thing since you can have multiple 60 GHz networks that don't interfere with one another

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the decision on what form of MIMO to use is complex and done in real time by the baseband layer in the chipset.  we will discuss this topic tomorrow in more depth

 

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Due to a computer glitch, I was late logging on.  I an archived version available now so I can catch up quickly?

 

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there is a task group under 802.15 that is looking at visible light communications

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Nice lecture, Thank you very much


Here some questions: 


MiMO can speed up the system or make it more redundant, depending of making different threads of sending the same data and hoping it arribes through one carrier. What is the decision to use more or less?


For the 60MHz band, do you know whet effects have the thin walls on a house?

 

 

 

Thank you for the presentation.

You mentioned 60GHz band which is very short range due to oxygen absorbtion.

I wonder if there is any task group investigating visual light communication using LEDs?

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Perfect!  Thank you Fanny.  ;-) 

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Leo,  sounds like a fun project

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as far as resources, check the wi-fi alliance website for white papers and also our site at http://www.octoscope.com/English/Resources/Articles.html

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Thank u very much! Im thinking&developing a musical project that could end up into a wireless networked (collaborative creation) adapted musical instrument for developing people´s sensitivity while expressing themselves and having fun

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Thank you for a wonderful lecture, Fanny.

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Fanny. Thanks for sharing important information

 

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Fanny.  Any resources, websites or books, do you recommend for more knowledge in these topics you covered today and for the rest of the week?

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Is there somewhere to see the answers to the questions?

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beamforming DSP is done in the WiFi chipset baseband layer and is a combination of hardware and firmware algorithm implementation

 

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Thank you.  A lot of good information!

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@awolfe58 Thank you, i got the link. Thanks for good presentation.
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was there ever a response regarding a recording of this being available?

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Student, retired electronics

 

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thank you Fanny, very interesting introduction

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Thanks! until tomorrow!

 

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Thanks. Nice overview.

 

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Thanks for the presentation

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Thank you everyone. 

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here are some earlier questions repeated for you, Fanny:

Q: for these adaptive beamforming algorithms... what kind of system resources are we consuming? does this get offloaded to the DSP? the GPP?

Q: for these adaptive beamforming algorithms... what kind of system resources are we consuming? does this get offloaded to the DSP? the GPP?

QWhere we can get more information about beamforming?

QHow would you qualify WiFox in the WSiFi technology roadmap, if at all?

 

 

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Excellent Presentation! Thank You Fanny & Alex

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Any Chance we can get the audio notes

 

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Thank you Fanny for today's presentation. Very interesting!

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Thanks for the great presentation

 

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Fanny,

Excellent presentation,  thank you very much

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Great lecture, thanks

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great overview, thank you.

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Thanks Fanny. A very well prepared and insightful session!

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Thank You very informative

 

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Thanks. Great presentation!

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any chance we can get that presentation on Smart Grid standards?

 

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Amazing lecture. Thank you Fanny. Much appreciation.

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The new working groups are providing much higher speeds. This is great. But what about increasing the range?

 

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Thank you for presentation.

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Thank you Fanny, very good presentation. Thank you for hosting Alex

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Great Presentation. Thank you. Can we follow up with Fanny, if we have any questions ?

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Excellent class.  Yes great suggestion to add notes to the slides on the PPT presentations.

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excellent presentation.  thank you.

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Thank you for answering my question as to operation using the ac standard close to an airport (i.e. 5 GHz radar)

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Excellent Class; Thank You Fanny & John!

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You can open the link in powerpoint (as if editing it) to get the url.

 

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one of the earlier pages had notes...that was good...is it possible to add more notes to the other pages?

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@John_Takada, Fanny will hunt up the link

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60GHz band with 10m range at 1Gbps?

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is there a good overview book on the subject that is reasonably current?

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ag is similar to a/g?

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I'm sorry. It seems that i can't click the link on slide 19.

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the link:

http://www.bbc.com/future/story/20121005-building-the-crash-proof-car/1

 

Would WiFi Direct also look at 802.11af ?

 

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15ys in medical device development

Are there any efforts underway specifically targeting medical devices, hospitals, and or body worn sensors.

 

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Does GPS currently have high enough resolution to be used with collision avoidance or will there have to be improvements in GPS.

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[I'm very interested in this DSRC, since I'm currently doing some research in ELMs (Extreme Learning Machines) with DIP application --- DSRC might open up the scope of my research].

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802.11P - Is there linking between the satelite and this wireless comm?  And security is obviously and issue...  For future installation, is the a partitioning scheme to keep a wall between operations of the main auto control system with the wireless communication?

 

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What's about TGaj - China Mili-Meter Wave?

 

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Is there any Company working on Terrestrial deployment for 802.11 ah ?

 

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Would you think that 802.11p will be used for mobile robotics too?

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even me same problem link's not working for me

is the 60 Ghz standards finalized and is any company working on chip design for the same ?

 

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link's not working for me

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Excellent presentation!

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Q  Would like to know ranges of some of these wireless standards applications?

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Q: Is 802.11af taking over UHF due to Digital TV becoming more popular?

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Is there any test if a 60GHz signal can pass through a thin wall inside a house?

Link missing in "Good introduction _here_" on slde 19

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Link doesn't work on slide 19

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Q: What's the range of 60GHz frequencies?

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an_zak, keith, m.k: Fanny will answer those questions when she comes on the live chat here after the PPT is done

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Where we can get more information about beamforming?

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Q: for these adaptive beamforming algorithms... what kind of system resources are we consuming? does this get offloaded to the DSP? the GPP?

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Electronics Engineer / Electromagetic Compatibility Engineer- I have a general interest in RF communications and finding the lecture interesting. Thank you.

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Interested in hardware, especially FPGAs.

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How would you qualify WiFox in the WSiFi technology roadmap, if at all?

 

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Planar array style lobe shifting to point the signal at the base?

 

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Is the power range used regulated?

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R&D These topics will help me a lot especially. I will be interested more on hardware concepts.

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Q: Slide 12 -> How about the antenna model? Circuit array sounder?

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so beamforming is dynamic ?

 

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Sr. Program Manager -Microsoft WP Division. Interested in Connectivity Solutions -WiFi and BT

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Q Was the range ever discussed for 802.11ad with 60GHz band? 

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by phase shift lobes???

 

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Q: On this PSD, even though the energy has power up to 2.2 GHz, actual data is only to 0.94GHz, right?

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Methods of beamforming?

 

13th year in Wi-Fi radio design, pre 11b thru evaluating 80MHz-wide 11ac, currently. Co-ex with BT & cellualar are on-going issues, as well keeping up with what's coming down the road...

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engineer in industrial controls with experience in enterprise wi-fi telephony

area of interest: general wireless communications technolgies, from PAN to WAN

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does it require more power to operation at a higher bandwidth such as 60GHz?

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Why are differences between US, EU and Japan regarding the channels?

 

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R&D Developing wireless HDMI signal

 

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Interests - ZigBee, Bluetooth

Disp - Electrical Design Engineer

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Analog design engineer for calibration equipment. This is all foreign to me.

 

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In case of MIMO, what is the way that the system decides witch kind of redundancy ve speed decision is used?

Discipline:   Communication system architect

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RF Applications engineer...interested in HW issues...content is very good so far

 

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Background is in point-to-point uWave. Interested in all stds for consumer products.

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My disciplin: Electronic Eng.

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Interest in DSRC, Vehicular Communications and 802.11p

Thank you for going a bit over the time, lecture is interesting

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Electrical Engineer, interested in WiFi communication

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System Enginerring and HW Development

Interest in WiFi communication

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So it say "nomadic (walking speeds)" so only for low velocity moving receiver?  

 

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Could you say a few words about the channel widths, 20 vs 40 or 80MHz? Does a wider channel allow more carrier frequencies or something like along those lines?

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140Mbps!? That's incredible. I understand everything thus far, and it's great.

 

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Q: I know OFDM and band. I wonder one call contains only one band?

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Q: So with 2x2 antenna, 2 streams?

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is it possible to get audio recording of Fanny's presentation please as there is a lot covered here.

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Q: I'm sorry. I don't understand the concept of stream. Is it like MIMO beam?

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Signing out - audio link.

Q: Let's say that someone calls on 4G, will the spectrum contains certain band (OFDM looks like OFDM) or multiple bands?

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Why are differences between US and EU,Japan related to channels in 5GHz Band?

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@MarkR, some companies block live streams. otherwise reload page or try another browser

 

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similar seminar about 15.4 would be really interesting even considered the new growing 6lowpan technology

 

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DSRC would be good for industrial applications?

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nothing happens when I click on the audio player

that audio player is at the top of this page

 

Author

where is the audio link

where is the audio link

Zigbee, blueetooth and wifi

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>sorry i am unable to listen the voice.what should i do?

 Refresh your browser. if that doesnt work try firefox

 

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I'm insterested in an interview of all standards.

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bluetooth and wifi interest

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I am interested in DVB-S2 , 802.11 

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Are all backwards compatible?

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do your testing before starting

 

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sorry i am unable to listen the voice.what should i do?

 

I cannot get any sound.  How do I get sound???

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Interested in 4G/LTE for industrial applications.

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Project EE for medical home health care devices - general interest in all technologies

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acquire general knoledge

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is this the same as DMT that's used for XDSL?

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802.11n and <

Also, LTE and 5g pros and cons and implementation boundaries/limitations

 

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OFDM between ch or tone?

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RF andbluetooth development

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where the technology is heading..

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embedded systems, aeronautical industry

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Hardware and firmware engineer.

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Harware Engineering/Biomedical Eng. Wireless Technology Intro for future product development

IEEE control for test equipment

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Embedded Software and hardware. I'm just interested in general wireless topics

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Acquire general knowledge, 4G

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interested in LTE/nextGen wifi solution integration

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Mechatronics. DSP major --- hoping to learn something new. 4G

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wireless systems --supranets

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Embedded Software Developer

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be introduces deeper in the standard and related technologies

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need overview of state of art, most used now

 

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Where the technology is headed.

 

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overview is fine...all of it

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A general overview

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Embedded Design....applications in helath care and lighting

 

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Telecommunications engineer

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Microelectronics and VLSI Design Student , interested in 4g 

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Embedded / Software

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EE/DSP engineer - radio comms/small form factor electronic devices

 

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As far as I know, LTE is from 3GPP and 802.11n is from Wimax. Would you please explain between 3GPP and 802.11n?

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Greeting from Philadelphia

 

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Systems Test Engineer

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Control systems and wireless communication background with applications in networking for automation and instrumentation systems.

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Embedded HW/SW ..more towards hardware

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Hi, Embedded developer with RFID and HF 

 

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Systems Engineer for Vehice Integrated Hot Spots

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Hardware/software/some embedded in biomedical research

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Hardware and Software Engineer

EE Engineering Controls Systems

Author

Hello,

Hardware digital design

 

Author

Greetings from Netherlands. BT HW/SW cus suppport

Author

i am graduate in microelectronics from uk....interested in embedded system 

 

Good morning Fanny & Alex.

HW/ SW R&D Engineering

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Hardware/Systems Engineer working for defense contractor

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senior electronic engineer working on wireless comm systems design

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I'm mixed hardware and software.  Current interest: bluetooth, low-energy.  Thanks!  jb

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hardware and software but mostly hardware

 

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My name is Wonoh Kim from GA. SW and working on LTE and PIM

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Mostly hardware with a little software when necessary

 

EE Hardware, system desingner.

 

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HW Development, EE

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former motorola systems engineer now patent attorney

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Hardware/software support

 

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hardware and systems

Author

@ rec-it refresh browser

Author

Hardware Engineer

 

Author

Download slides and listen to the audio stream.

 

Author

Hi everyone, Dublin is here

 

Author

Where's the webinar?  I'm not finding a link?

 

Author

Good morning from Carsn City NV where we have snow on the ground and woke up to 1 deg F.  Brrr

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jb232...in sydney yes we were

 

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Hi, greetings from Guadalajara, Mexico!

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Hello from Philadelphia :P

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Greetings from Boston, where we are having a hot flash!

Author

Hello from sydney

 

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good morning!

 

Author

Checking in ... how do I get this to start?  jb

Author

Good morning everyone.

 

Author

Hi everyone,

I am in Vancouver canada. It's snowing now. Good skiing season now!

Author

Slides I have.  Thank you.

Author

Please download slide deck to follow along with the lecture

Author

Hello from  Cape Town ,South Africa.

Author

does anyone know if the audio stream will be available as an audio file for download to reference from?

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Hello from Toronto!

Author

Hello from Cali

Control Systems Engineer

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Live audio stream automatically starts at 12:00 pm EST, download the slide deck and follow along

Author

Are these things live or just a pre-recorded briefing? 

Author

Hello from Finland!

Author

Hello from New Jersey

Author

i think automatically online session starts after 31 minutes orelse we need to do any thing

Hello from Scottsdale, AZ

Author

when the class is going to start

 

hi i am interested on OFDM AND PIM..but i hv no idea..

 

I need someone to discuss on OFDM and PIM. If anyone know the topic or interesting on the topic, please let me know.

Author

Does anyone interesting on OFDM and PIM?

Author

Hello everybody! from Jalisco, land of mariachi, tequilas and Margaritas  :)

Author

make that is now 11:20

Author

Here in GA, the time is 11:20AM. It will start in 40 min.

Author

EST is not 11:20, so you have about 40 mins to go

Author

Shivakchepyala: The EST time means Eastern time. It is GMT -5, when it is in London GMT 0. So the classes begin five hours later than London time...

Author

thanks wkim rookie..could you please guide with timing..now time in uk is 4.18pm..by what time does the session start according to uk time...

No. The class hasn't started yet.

I think it will start from 12PM EST

Author

please can one help me..need to know does class has started

 

If anyone has or know where to find the spectrum snapshot of LTE, would you please let me know? Thank you.

Author

hello when does the class start i am living in uk

Also will they several trapezoid on the spectrum or just one?

Author

LTE and LTE Advanced use OFDM. I know that OFDM has multi-tones overlapped with certain bandwidth. I real world, how they look like on spectrum? For example, if I initiate a call, I can see a band of PSD on frequency domain? Like trapezoid?

Author

Downloaded the slide. Covers many interesting topics. Thank you.

Author

The Blog Talk Radio Audio will start at 12:00 p.m. EST. 
Down Load the Today's Slide Deck just below the

Special Educational Materials


 

Author

Hello Good Morning from SanJose, CA

It's Freezing 35°F and a High of 52°F.

 

Author

Yes I was wondering that too.  Does it pop up on this same screen when the briefing begins? Or is there another link we have to click on to access the video/audio?  Thanks

Author

Hello everyone..how the video or sudio works here?

 

Author

Morning everyone.

 

Author

Looks like we're all Rookies here.

Author

good morning everyone

Author

Hello everyone from Colombia, Latinoamerica.

Author

Hello everyone from GA.

Author

can you please explain me how the power of the devices help in determining the area of coverage for the Wifi.

Is there any formula like devices (the WiFi chipsets of certain power cab guarantee the area of coverage in meters). Are there different class of devices with diffrent RF powers.

thanks

Author

i am unable to view the video.please help me

 

@Grant.Nicol to know my local time I always go to wolframalpha.com and I paste there what it says on the post "12:00 p.m. EST" in this case. I hope it works for you as well!

EST is Eastern Standard Time in US winter. I think the timestamp in the comments is the same.

Author

I am here looking forward for this first experience with EETimes webminar.

 

Author

Good to see the slides early as I can brush up.

The slides are super. see you soon

Author

hi fanny, hope the talk is fanny also...

 

Author

Hello everyone. I am here in Vancouver.

Author

Happy to meet Fanny once again

Author

Is that also available in german langugage and what do I've to do from my site to take the cours. Can I talke in german aswell?

what time zone are the posted times for?
Author

Good luck to all the participants.

 

ready to interact in te webcast

Author

Good to see you shall be giving us another great lecture.

Keep up the good work, C U soon. Rod R.

Author


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