  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.
