We present in this paper the evaluation of the energy consumption of PRCSMA, an 802.11-based medium access control protocol designed to coordinate the retransmissions from the relays in a wireless network implementing a Cooperative Automatic Retransmission Request (C-ARQ) scheme. A comparison in terms of energy efficiency with non-cooperative ARQ schemes (retransmissions performed only from the source) and with ideal C-ARQ (with perfect scheduling among the relays) is included in this paper. The main results show the conditions under which a C-ARQ scheme with PRCSMA outperforms, in terms of energy efficiency, non-cooperative ARQ schemes and also show that the overhead of the MAC layer cannot be neglected in order to accurately evaluate the performance of a C-ARQ scheme.
Best Paper Award in Communications QoS, Reliability and Modelling. IEEE ICC 2011
CitationAlonso-Zárate, J. [et al.]. Energy-efficiency evaluation of a medium access control protocol for cooperative ARQ. A: IEEE International Conference on Communications. "2011 IEEE International Conference on Communications: ICC 2011". 2011, p. 1-5.
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