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most interested in 802.11

Rookie

most interested in 802.11

Rookie

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

Rookie

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.

Rookie

Interested in learning more about LTE and 5G.

Rookie

a lot of information to digest. 

Rookie

another source of information

Rookie

just missed earlier part

Rookie

good presentation

Rookie

thank you for the excellent presentation!

Rookie

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

Rookie

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.

Rookie

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

Rookie

acohenjr

   Thank  you

Rookie

more detail on communication standards

Rookie

Embedded Hardware Developer

Rookie

Thank you Fanny; excellent presentation

Rookie

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

Rookie

Thank You very much

Rookie

thanks for a good info

Rookie

good day to all :)

Rookie

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

 

Rookie

Define "short range"

Rookie

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

 

Rookie

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.

Rookie

design / project management

ccraft

Rookie

Hardware & Software combined.

 

Rookie

Trainer in Simulation Technologies including ESL and TLM

Rookie

Thanks for the great presentation

Rookie

Thank you Fanny, Great Lecture

 

Rookie

Thank you Fanny. Will see you tomorrow.

Rookie

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

Rookie

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

Rookie

definitely see u tommorrow...

 

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

Rookie

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

Blogger

wider channels allow higher symbol rates

Blogger

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

Blogger

and channel width is bandwidth?

Rookie

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.

Blogger

Thanks Fanny, looking forward for tomorrow's lecture

Rookie

Fanny, you rock! thank you

Rookie

Hi Fanny,

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

Rookie

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.

Blogger

assuming carrier is rationally chosen

 

Rookie

throughput is always bandwidth, not carrier freq

Rookie

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?

Rookie

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

Rookie

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.

Blogger

the wider the channel the higher the achievable thorughput and range

Blogger

less bandwidth = less throughput

 

Rookie

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

Blogger

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

Rookie

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

Rookie

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.

Blogger

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.

Blogger

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

Rookie

My earlier question was:

 

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

Rookie

JuanP question was:

 

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

Rookie

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

 

Rookie

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

Blogger

Excuse the ignorance i am new to RF but

 

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

Rookie

Fanny, please answer my earlier question.

Rookie

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

Blogger

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

 

Blogger

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

 

Rookie

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

Blogger

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?

Rookie

Perfect!  Thank you Fanny.  ;-) 

Rookie

Leo,  sounds like a fun project

Blogger

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

Blogger

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

Rookie

Thank you for a wonderful lecture, Fanny.

Rookie

Fanny. Thanks for sharing important information

 

Rookie

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?

Rookie

Is there somewhere to see the answers to the questions?

Rookie

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

 

Blogger

Thank you.  A lot of good information!

Rookie
@awolfe58 Thank you, i got the link. Thanks for good presentation.
Rookie

was there ever a response regarding a recording of this being available?

Rookie

Student, retired electronics

 

Rookie

thank you Fanny, very interesting introduction

Rookie

Thanks! until tomorrow!

 

Rookie

Thanks. Nice overview.

 

Rookie

Thanks for the presentation

Rookie

Thank you everyone. 

Rookie

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?

 

 

Rookie

Excellent Presentation! Thank You Fanny & Alex

Rookie

Any Chance we can get the audio notes

 

Rookie

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

Rookie

Thanks for the great presentation

 

Rookie

Fanny,

Excellent presentation,  thank you very much

Rookie

Great lecture, thanks

Rookie

great overview, thank you.

Rookie

Thanks Fanny. A very well prepared and insightful session!

Rookie

Thank You very informative

 

Rookie

Thanks. Great presentation!

Rookie

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

 

Rookie

Amazing lecture. Thank you Fanny. Much appreciation.

Rookie

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

 

Rookie

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

Rookie

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

Rookie

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

Rookie

excellent presentation.  thank you.

Rookie

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

Rookie

Excellent Class; Thank You Fanny & John!

Rookie

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

 

Rookie

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

Rookie

@John_Takada, Fanny will hunt up the link

Rookie

60GHz band with 10m range at 1Gbps?

Rookie

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

Rookie

ag is similar to a/g?

Rookie

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

Rookie

the link:

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

 

Would WiFi Direct also look at 802.11af ?

 

Rookie

15ys in medical device development

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

 

Rookie

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

Rookie

[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].

Rookie

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?

 

Rookie

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

 

Rookie

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

 

Rookie

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

Rookie

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 ?

 

Rookie

link's not working for me

Rookie

Excellent presentation!

Rookie

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

Rookie

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

Rookie

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

Rookie

Link doesn't work on slide 19

Rookie

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

Rookie

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

Rookie

Where we can get more information about beamforming?

Rookie

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

Rookie

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

Rookie

Interested in hardware, especially FPGAs.

Rookie

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

 

Rookie

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

 

Rookie

Is the power range used regulated?

Rookie

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

Rookie

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

Rookie

so beamforming is dynamic ?

 

Rookie

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

Rookie

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

Rookie

by phase shift lobes???

 

Rookie

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

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...

Rookie

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

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

Rookie

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

Rookie

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

 

Rookie

R&D Developing wireless HDMI signal

 

Rookie

Interests - ZigBee, Bluetooth

Disp - Electrical Design Engineer

Rookie

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

 

Rookie

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

Rookie

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

 

Rookie

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

Rookie

My disciplin: Electronic Eng.

Rookie

Interest in DSRC, Vehicular Communications and 802.11p

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

Rookie

Electrical Engineer, interested in WiFi communication

Rookie

System Enginerring and HW Development

Interest in WiFi communication

Rookie

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

 

Rookie

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?

Rookie

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

 

Rookie

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

Q: So with 2x2 antenna, 2 streams?

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

Rookie

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

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?

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

Rookie

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

 

Rookie

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

 

Rookie

DSRC would be good for industrial applications?

Rookie

nothing happens when I click on the audio player

that audio player is at the top of this page

 

Rookie

where is the audio link

where is the audio link

Zigbee, blueetooth and wifi

Rookie

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

 Refresh your browser. if that doesnt work try firefox

 

Rookie

I'm insterested in an interview of all standards.

Rookie

bluetooth and wifi interest

Rookie

I am interested in DVB-S2 , 802.11 

Rookie

Are all backwards compatible?

Rookie

do your testing before starting

 

Rookie

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

 

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

Rookie

Interested in 4G/LTE for industrial applications.

Rookie

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

Rookie

acquire general knoledge

Rookie

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

Rookie

802.11n and <

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

 

Rookie

RF andbluetooth development

Rookie

where the technology is heading..

Rookie

embedded systems, aeronautical industry

Rookie

Hardware and firmware engineer.

Rookie

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

IEEE control for test equipment

Rookie

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

Rookie

Acquire general knowledge, 4G

Rookie

interested in LTE/nextGen wifi solution integration

Rookie

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

Rookie

wireless systems --supranets

Rookie

Embedded Software Developer

Rookie

be introduces deeper in the standard and related technologies

Rookie

need overview of state of art, most used now

 

Rookie

Where the technology is headed.

 

Rookie

overview is fine...all of it

Rookie

A general overview

Rookie

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

 

Rookie

Telecommunications engineer

Rookie

Microelectronics and VLSI Design Student , interested in 4g 

Rookie

Embedded / Software

Rookie

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

 

Rookie

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

Greeting from Philadelphia

 

Rookie

Systems Test Engineer

Rookie

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

Rookie

Embedded HW/SW ..more towards hardware

Rookie

Hi, Embedded developer with RFID and HF 

 

Rookie

Systems Engineer for Vehice Integrated Hot Spots

Rookie

Hardware/software/some embedded in biomedical research

Rookie

Hardware and Software Engineer

EE Engineering Controls Systems

Rookie

Hello,

Hardware digital design

 

Rookie

Greetings from Netherlands. BT HW/SW cus suppport

Rookie

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

 

Good morning Fanny & Alex.

HW/ SW R&D Engineering

Rookie

Hardware/Systems Engineer working for defense contractor

Rookie

senior electronic engineer working on wireless comm systems design

Rookie

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

Rookie

hardware and software but mostly hardware

 

Rookie

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

Mostly hardware with a little software when necessary

 

EE Hardware, system desingner.

 

Rookie

HW Development, EE

Rookie

former motorola systems engineer now patent attorney

Rookie

Hardware/software support

 

Rookie

hardware and systems

Rookie

@ rec-it refresh browser

Rookie

Hardware Engineer

 

Rookie

Download slides and listen to the audio stream.

 

Rookie

Hi everyone, Dublin is here

 

Rookie

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

 

Rookie

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

Rookie

jb232...in sydney yes we were

 

Rookie

Hi, greetings from Guadalajara, Mexico!

Rookie

Hello from Philadelphia :P

Rookie

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

Rookie

Hello from sydney

 

Rookie

good morning!

 

Rookie

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

Rookie

Good morning everyone.

 

Rookie

Hi everyone,

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

Rookie

Slides I have.  Thank you.

Rookie

Please download slide deck to follow along with the lecture

Rookie

Hello from  Cape Town ,South Africa.

Rookie

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

Rookie

Hello from Toronto!

Rookie

Hello from Cali

Control Systems Engineer

Rookie

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

Rookie

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

Rookie

Hello from Finland!

Rookie

Hello from New Jersey

Rookie

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

Hello from Scottsdale, AZ

Rookie

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.

Does anyone interesting on OFDM and PIM?

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

Rookie

make that is now 11:20

Rookie

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

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

Rookie

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...

Rookie

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

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.

hello when does the class start i am living in uk

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

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?

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

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


 

Rookie

Hello Good Morning from SanJose, CA

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

 

Rookie

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

Rookie

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

 

Rookie

Morning everyone.

 

Rookie

Looks like we're all Rookies here.

Rookie

good morning everyone

Rookie

Hello everyone from Colombia, Latinoamerica.

Rookie

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

Rookie

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.

Rookie

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

 

Rookie

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

The slides are super. see you soon

Rookie

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

 

Rookie

Hello everyone. I am here in Vancouver.

Rookie

Happy to meet Fanny once again

Rookie

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?
Rookie

Good luck to all the participants.

 

ready to interact in te webcast

Rookie

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

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

Rookie


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