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Bert22306
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re: Atmel Wi-Fi buy aimed at Internet of Things
Bert22306   1/2/2013 9:36:46 PM
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I agree with tb1. If it's "personal area" you're talking about, something like Bluetooth might make more sense. But much of IoT is not just personal area. It's at least room area, if not whole house area, which is exactly what WiFi is designed for. So then the question should be, is there anything inherently wasteful in IEEE 802.11 that might suggest a better alternative for the job?

tb1
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re: Atmel Wi-Fi buy aimed at Internet of Things
tb1   1/2/2013 7:40:48 PM
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"Is Wi-Fi still a good technology for IoT? Is this cheap and power efficient enough?" It depends on which Things (the 'T' of IoT) that you are talking about. Bluetooth 4.0 is probably the best for things near you, such as pulse monitors for exercise logging. For things around the house, the advantage of WiFi is that it exists in almost everyone's house. If you created a WiFi controlled plug or garden sprinkler system, for example, anyone could buy one, plug it in and immediately use it. Some other RF network, such as Zigbee may be smaller and lower power, but it requires a separate controller. For objects used out of the house (such as a tablet), what other choice is there but WiFi?

GREATTerry
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re: Atmel Wi-Fi buy aimed at Internet of Things
GREATTerry   12/28/2012 12:01:36 PM
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Is Wi-Fi still a good technology for IoT? Is this cheap and power efficient enough?



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As data rates begin to move beyond 25 Gbps channels, new problems arise. Getting to 50 Gbps channels might not be possible with the traditional NRZ (2-level) signaling. PAM4 lets data rates double with only a small increase in channel bandwidth by sending two bits per symbol. But, it brings new measurement and analysis problems. Signal integrity sage Ransom Stephens will explain how PAM4 differs from NRZ and what to expect in design, measurement, and signal analysis.

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