Collisions with hidden terminals is a major cause of performance degradationin 802.11 and likewise wireless networks. Carrier sense multiple access withcollision avoidance (CSMA/CA) is utilized to avoid collisions at the cost ofspatial reuse. This report studies receiver design to mitigate interferencefrom hidden terminals. A wireless channel model with correlated fading in timeis assumed. A message-passing approach is proposed, in which a receiver cansuccessfully receive and decode partially overlapping transmissions from twosources rather than treating undesired one as thermal noise. Numerical resultsof both coded and uncoded systems show the advantage of the receiver overconventional receivers.
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