Towards peaceful coexistence of wireless PANs, LANs and WANs

23 October 2002 News

An interesting paper was presented at the Communications Design Conference, California, in September, which discusses issues in developing multistandard radio technologies, and the challenges of integrating multiple radios in the same platform and even the same chipset. Since Bluetooth - 802.11b coexistence is the most pressing need for multistandard radio support, the paper, titled 'Working towards the peaceful coexistence of wireless PANs, LANs, and WANs' reviews current work in this area, which is substantial. The accepted IEEE 802.15.2 best practices recommendations for coexistence between 802.11b and Bluetooth technologies is a leading forum for such work. Authored by Jim Lansford, of Mobilian Corporation, it provides an overview of the technologies and the 802.15.2 task group, which is followed by a review of how 'collaborative' techniques such as enhanced MAC/PHY layer collaboration can be used to improve the performance of multi-radio implementations in notebook computers. The paper closes with new efforts recently underway to address coexistence issues in other unlicensed bands such as 5 GHz, followed by a look at the future of multistandard radio technology. The paper can be viewed at www.chipcenter.com/wireless/images/W141LansfordPaper.pdf

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