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Coexistence Challenges in 802.11 High Throughput Networks: Insights and Considerations

This commentary by Adrian P. Stephens from Intel addresses coexistence issues in 802.11 High Throughput (HT) environments. It emphasizes avoiding channel sharing with legacy devices and presents a channel selection heuristic to mitigate conflicts. The potential for cooperating with 802.11h devices to facilitate movement is explored. The protocol is designed to support both 2.4 GHz and 5 GHz operations, while "mixed" Basic Service Set (BSS) environments, though rare, are critical to the protocol's robustness. The author also discusses the need for comprehensive usage modeling and interference definitions within HT use cases.

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Coexistence Challenges in 802.11 High Throughput Networks: Insights and Considerations

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  1. 802.11 High Throughput Coexistence issues – a personal comment Adrian P Stephens (adrian.p.stephens@intel.com) Adrian Stephens, Intel

  2. 802.11 HT Coexistence Issues • Want to avoid sharing a channel with legacy devices • Channel selection heuristic • The possibility of “cooperating” with 802.11h devices to move them • Protocol is “agnostic” to frequency band • Must support 2.4 GHz and 5 GHz operation • “Mixed” BSS operation is rare, but must be present in the protocol. Adrian Stephens, Intel

  3. Usage Modeling • Usage Modeling HTSG special committee started with this author as the chair • Likely to be ~15 use cases for which results must be presented during submission. Each use case adds significantly to the cost of preparing submissions • What are the interference use cases? • Who can define what types of interference are reasonable? Adrian Stephens, Intel

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