Mobility

ACORN: An Auto-Configuration Framework for 802.11n WLANs

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Executive Summary

The wide channels feature combines two adjacent channels to form a new, wider channel to facilitate high data rate transmissions in MIMO-based 802.11n networks. Using a wider channel can exacerbate interference effects. Furthermore, contrary to what has been reported by prior studies, the authors find that wide channels do not always provide benefits in isolation (i.e., one link without interference) and can even degrade performance. They conduct an in-depth, experimental study to understand the implications of wide channels on throughput performance. Based on their measurements, they design an auto-configuration framework called ACORN for enterprise 802.11n WLANs.

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