ALOHA packet system with and without slots and capture
ACM SIGCOMM Computer Communication Review
Power levels and packet lengths in random multiple access
IEEE Transactions on Information Theory
PHY-aware distributed scheduling for ad hoc communications with physical interference model
IEEE Transactions on Wireless Communications
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We extend existing models to better characterize the impact of the physical layer on random-access performance, and we highlight some ambiguities and inaccuracies that have been prevalent in the literature since physical models for capture were first studied. Most earlier studies of capture in random-access systems are applicable only to narrowband systems, although this limitation is often not noted. We present an analytical model that is applicable to wideband systems as well. Simulation is used to evaluate performance because of the high complexity of the analytical model. We present performance results for both single-destination and multiple-destination networks.