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Information Technology Journal
Year: 2010  |  Volume: 9  |  Issue: 2  |  Page No.: 266 - 273

Performance Study of a Resource Allocation Scheme with Fairness Consideration in Multihop Systems over Nakagami-m Channels

X. Zhou, D. Wang, D. Hu and Q. Lin    

Abstract: In this study, we consider the design of a radio resource allocation technique for an Orthogonal Frequency Division Multiple Access (OFDMA) based Multiple Input Multiple Output (MIMO) multihop network. To avoid the inter-hop interference, the half-duplex orthogonal relay channel construction method and related multihop transmission scheme are designed. Over Nakagami-m fading channels, we propose a low-complexity resource allocation algorithm using Meijer G-function. And, the long term fairness performance is also investigated. Simulation shows that the proposed analytical algorithm is efficient and with good accuracy to Monte Carlo results. And, simulations also demonstrate that the spatial diversity gain offered by relay antenna array can effectively balance the tradeoff between the fairness performance and the system throughput.

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