Cross-layer multi-packet ARQ and AMC for QoS-guaranteed mobile multicast

Authors:
Haibo Wang;Hans-Peter Schwefel;Xiaoli Chu
Affiliations:
Beijing Jiaotong University, Beijing, China;Forschungszentrum Telekommunikation Wien (FTW), Wien, Austria;King's College London, London, United Kingdom
Venue:
Proceedings of the 6th International Wireless Communications and Mobile Computing Conference
Year:
2010

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Abstract

In this paper, we present an innovative ARQ approach for mobile multicast, which utilizes packet-combining to reduce the number of retransmissions. We adopt the proposed ARQ scheme jointly with adaptive modulation and coding (AMC) in a cross-layer design framework to improve the average spectral efficiency per receiver under specific QoS constraints. Expressions are derived for the proposed joint ARQ-AMC schemes, which are then compared with existing multicast schemes under Rayleigh fading channels for different Signal-to-Interference-and-Noise-Ratios.