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Wireless Networking

Submission + - Bluetooth & Wi-Fi co-existence

Shakrai writes: "A question for those with more experience with Bluetooth then I have: Has anybody noted/worked-around/been-able to solve co-existence problems with bluetooth and 802.11b/g WLANs? I'm playing around with the T-Mobile T-Mobile HotSpot @ Home service at the office for our directors and while the service works great, the heavy network traffic on the wireless lan renders bluetooth headsets unusable. Short pops of static occur about ten times a second. The WLAN itself doesn't even seem to notice.

Given that Bluetooth's design purposefully uses the entire range of unlicensed channels on 2.4Ghz I'd given up on trying to get it to co-exist with WLANs. But I've noted that Bluetooth 1.2 includes support for "Adaptive frequency-hopping spread spectrum", which theoretically will remove crowded channels from the hopping sequence. Given that a single 802.11b/g access point only uses a portion (roughly 1/3) of the band available to Bluetooth, wouldn't it stand to reason that Bluetooth and Wi-Fi can be made to peacefully co-exist?

Perhaps the problem lies with the cheap headsets that my company is providing us? Does anybody have any experience with particular models of Bluetooth headsets used in a heavy wi-fi environment? Or any experience with the actual HotSpot service and the phones that T-Mobile offers? Does any model of phone or headset stand out as being better at co-existing then the others?"

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