Improving fairness in relay-based access networks

Authors:
Lin Xiao;Laurie Cuthbert
Affiliations:
Queen Mary, University of London, London, United Kingdom;Queen Mary, University of London, London, United Kingdom
Venue:
Proceedings of the 11th international symposium on Modeling, analysis and simulation of wireless and mobile systems
Year:
2008

Citing 2
Cited 2

Opportunistic multi-access: multiuser diversity, relay-aided opportunistic scheduling, and traffic-aided smooth admission control

Mobile Networks and Applications
Resource Allocation for OFDMA Relay Networks With Fairness Constraints

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Load based relay selection algorithm for fairness in relay based OFDMA cellular systems

WCNC'09 Proceedings of the 2009 IEEE conference on Wireless Communications & Networking Conference
Fairness-aware radio resource management in downlink OFDMA cellular relay networks

IEEE Transactions on Wireless Communications

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Abstract

In this paper the fairness of the subchannel allocation problem for relay based OFDMA systems is studied. The proportional fairness algorithm is extended to a two-hop scenario to ensure that both direct-link users and relay-link users are fairly allocated capacity; this approach is called the "two-hop proportional fairness scheduling algorithm". The fairness allocation problem is considered both in the first time subslot between direct-link users and relay stations, and the second time subslot among relay-link users. Simulation results show that this algorithm achieves an overwhelming performance on the long-term fairness of the user data rate, although suffering some throughput reduction.