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Communication Dans Un Congrès Année : 2013

Cooperative MAC protocol with distributed relay selection and physical rate adaptation

Résumé

In this paper, a new cooperative MAC protocol with distributed relay selection and rate adaptation is proposed in the context of multi-rate ad hoc networks. When the wireless link between a source and a destination nodes experiences poor channel conditions, a relay station is selected in the vicinity of both nodes so that the low data rate direct link is replaced by a two-hop path with a higher data rate. The relay station is selected through a distributed contention process. The procedure requires no topology knowledge and no communication among potential relays. A data rate adaptation is also performed without any additional signaling. The best-relay selection and the rate adaptation are based on instantaneous channel measurements to adapt to dynamic channel conditions. Results show that cooperative transmissions significantly outperform conventional non-cooperative transmissions in terms of throughput, delay and energy consumption.
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Dates et versions

hal-03882217 , version 1 (05-12-2022)

Identifiants

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Hicham Slimani, Benoît Escrig, Riadh Dhaou, André-Luc Beylot. Cooperative MAC protocol with distributed relay selection and physical rate adaptation. 10th IEEE Consumer Communications and Networking Conference (CCNC 2013), IEEE Communications Society, Jan 2013, Las Vegas, United States. pp.641-644, ⟨10.1109/CCNC.2013.6488516⟩. ⟨hal-03882217⟩
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