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We design a cross-layer approach to aid in develop- ing a cooperativesolution using multi-packet reception (MPR), network coding (NC), and mediumaccess (MAC). We construct a model for the behavior of the IEEE 802.11 MACprotocol and apply it to key small canonical topology components and theirlarger counterparts. The results obtained from this model match the availableexperimental results with fidelity. Using this model, we show that fairnessallocation by the IEEE 802.11 MAC can significantly impede performance; hence,we devise a new MAC that not only substantially improves throughput, butprovides fairness to flows of information rather than to nodes. We show thatcooperation between NC, MPR, and our new MAC achieves super-additive gains ofup to 6.3 times that of routing with the standard IEEE 802.11 MAC. Furthermore,we extend the model to analyze our MAC's asymptotic and throughput behaviors asthe number of nodes increases or the MPR capability is limited to only a singlenode. Finally, we show that although network performance is reduced undersubstantial asymmetry or limited implementation of MPR to a central node, thereare some important practical cases, even under these conditions, where MPR, NC,and their combination provide significant gains.

MAC Centered Cooperation - Synergistic Design of Network Coding, Multi-Packet Reception, and Improved Fairness to Increase Network Throughput