Multi-destination Aggregation with Binary Symmetric Broadcast Channel Based Coding in 802.11 WLANs

Chen, Xiaomin and Leith, Douglas (2019) Multi-destination Aggregation with Binary Symmetric Broadcast Channel Based Coding in 802.11 WLANs. Wireless Networks, 25 (5). pp. 2201-2216. ISSN 1022-0038

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Abstract

In this paper we consider the potential benefits of adopting a binary symmetric broadcast channel paradigm for multi-destination aggregation in 802.11 WLANs, as opposed to a more conventional packet erasure channel paradigm. We propose two approaches for multi-destination aggregation, i.e. superposition coding and a simpler time-sharing coding. Theoretical and simulation results for both unicast and multicast traffic demonstrate that increases in network throughput of more than 100% are possible over a wide range of network conditions and that the much simpler time-sharing scheme yields most of these gains and have minimal loss of performance. Importantly, these performance gains are achieved exclusively through software rather than hardware changes.

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