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Wireless Networking

Submission + - WiFi Interference: Beyond the Obvious

marciot writes: I live in a condominium where I get interference from my neighbors' wifi. I understand that 1, 6 and 11 are the only non-overlapping wifi channels, but how does this translate into real-life best practices?
  • When you must overlap, is there a "good" way to do it? With nine access points, for example, is it better to have three APs each on channels 1, 6 and 11, so that each completely overlaps with only two others. Or is it best to distribute those APs across nine channels such that they only partially overlaps others (but potentially overlap more APs in total)?
  • Do use patterns affect interference? For example, is it best to overlap a channel with multiple APs that rarely transfer data, or to share a channel with one person who downloads torrents 24/7?
  • Does maximum data rate affect interference or robustness to interference? I found out by accident that setting my access point to "802.11b only" mode appeared to give me a vastly more reliable connection that leaving it in "mixed 802.11b/g". Is this a fluke or does transmitting at 10 Mbps, when everyone else is using 54 Mbps (for their 3 Mbps DSL pipes!), give you a true advantage?
Books

Submission + - A Look Back at Kurzweil's Predictions for 2009 (kurzweilai.net)

marciot writes: An interesting look at Ray Kurzweil's predictions for 2009, from a decade ago. He was dead on in predicting the ubiquity of portable computers, wireless, the emergency of "digital" objects, and the rise of privacy concerns. He was a little optimistic in certain areas, predicting the demise of rotating storage and the ubiquity of digital paper a bit earlier than it appears it will actually happen. As it comes to human-computer speech interfaces, thought, he seems to be way off.

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