Improving fairness in IEEE 802.11 networks using MAC layer opportunistic retransmission

Authors

B Hagelstein, University of Technology, SydneyFollow
M Abolhasan, University of Technology, SydneyFollow
D Franklin, University of Technology, Sydney
Farzad Safaei, University of WollongongFollow

RIS ID

81292

Publication Details

B. Hagelstein, M. Abolhasan, D. Franklin & F. Safaei, "Improving fairness in IEEE 802.11 networks using MAC layer opportunistic retransmission," Computer Networks, vol. 57, (17) pp. 3410-3427, 2013.

Abstract

This paper introduces DAFMAC (Decode And Forward MAC), a scalable opportunistic cooperative retransmission enhancement for the IEEE 802.11 MAC protocol which operates without the need for additional explicit control signalling. Distributed opportunistic retransmission algorithms rely on selecting a single suitable relay without direct arbitration between nodes. Simulations show that DAFMAC offers a significant improvement in fairness for both throughput and jitter, giving multiple parallel data flows a more equal opportunity to utilise the channel. DAFMAC cooperative retransmissions are shown to reduce node energy consumption for a given throughput. Further, the DAFMAC relay selection algorithm is shown to scale very well in terms of complexity and memory requirements in comparison to other cooperative retransmission schemes.

Grant Number

ARC/DP0879507

Additional Grant Number

http://purl.org/au-research/grants/arc/DP0879507