Efficient Dynamic Frame Aggregation in IEEE 802.11s Mesh Networks

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Executive Summary

IEEE 802.11n could improve the network efficiency of WLAN by aggregating multiple frames into a single transmission. The frame aggregation technique especially benefits multi-hop transmissions that introduce enormous 802.11 Medium Access Control (MAC) layer control overhead. This paper proposes a novel algorithm, namely Dynamic Aggregation Selection and Scheduling (DASS) algorithm, which can dynamically adopt the appropriate aggregation mechanism for IEEE 802.11s mesh network. The characteristics, benefits and the restrictions of three aggregation mechanisms, aggregate MAC service data units, aggregate MAC protocol data unit and aggregate physical protocol data unit, are investigated.

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