Collision Resolution by Exploiting Symbol Misalignment

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dc.creatorLu, Lu
dc.creatorLiew, Soung Chang
dc.creatorZhang, Shengli
dc.date2008-10-02
dc.date2008-10-03
dc.date.accessioned2026-07-07T10:07:00Z
dc.date.available2026-07-07T10:07:00Z
dc.descriptionThis paper presents CRESM, a novel collision resolution method for decoding collided packets in random-access wireless networks. In a collision, overlapping signals from several sources are received simultaneously at a receiver. CRESM exploits symbol misalignment among the overlapping signals to recover the individual packets. CRESM can be adopted in 802.11 networks without modification of the transmitter design; only a simple DSP technique is needed at the receiver to decode the overlapping signals. Our simulations indicate that CRESM has better BER performance than the simplistic Successive Interference Cancellation (SIC) technique that treats interference as noise, for almost all SNR regimes. The implication of CRESM for random-access networking is significant: in general, using CRESM to resolve collisions of up to n packets, network throughput can be boosted by more than n times if the transmitters are allowed to transmit more aggressively in the MAC protocol.
dc.descriptionconference
dc.identifierhttps://arxiv.org/abs/0810.0326
dc.identifierhttp://arxiv.org/abs/0810.0326
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/170486
dc.subjectNetworking and Internet Architecture
dc.subjectInformation Theory
dc.titleCollision Resolution by Exploiting Symbol Misalignment
dc.typetext

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