Mobility

Binary Symmetric Channel Based Aggregation With Coding for 802.11n WLANs

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Executive Summary

In this paper, the authors consider the potential benefits of viewing the channel provided by an 802.11 WLAN as a Binary Symmetric Channel (BSC), as opposed to a more conventional packet erasure channel. That is, rather than simply discarding corrupted frames they consider viewing a received frame as a binary vector in which an unknown subset of bits have been "Flipped." They present analysis results for multicast and unicast traffic, taking account of important MAC layer overheads such as collision losses. Importantly, they also consider the multi-user channel aspect of a WLAN i.e. that transmission is inherently broadcast in nature.

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