Downlink Radio Resource Allocation for Coordinated Cellular OFDMA Networks
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概要
- 論文の詳細を見る
Base station coordination is considered as a promising technique to mitigate inter-cell interference and improve the cell-edge performance in cellular orthogonal frequency division multiple-access (OFDMA) networks. The problem to design an efficient radio resource allocation scheme for coordinated cellular OFDMA networks incorporating base station coordination has been only partially investigated. In this contribution, a novel radio resource allocation algorithm with universal frequency reuse is proposed to support base station coordinated transmission. Firstly, with the assumption of global coordination between all base station sectors in the network, a coordinated subchannel assignment algorithm is proposed. Then, by dividing the entire network into a number of disjoint coordinated clusters of base station sectors, a reduced-feedback algorithm for subchannel assignment is proposed for practical use. The utility function based on the user average throughput is used to balance the efficiency and fairness of wireless resource allocation. System level simulation results demonstrate that the reduced-feedback subchannel assignment algorithm significantly improves the cell-edge average throughput and the fairness index of users in the network, with acceptable degradation of cell-average performance.
- (社)電子情報通信学会の論文
- 2010-12-01
著者
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Tao Xiaofeng
Key Laboratory Of Universal Wireless Communications Bupt
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Chen Xin
Wireless Technology Innovation Institute Key Laboratory Of Universal Wireless Communication Ministry
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Zhang Hui
Wireless Technology Innovation Institute Key Laboratory Of Universal Wireless Communication Ministry
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Xu Xiaodong
Wireless Technology Innovation Institute Key Laboratory Of Universal Wireless Communication Ministry
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Svensson Tommy
Department Of Signals And Systems Chalmers University Of Technology
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LI Jingya
Wireless Technology Innovation Institute, Key Laboratory of Universal Wireless Communication, Minist
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TAO Xiaofeng
Wireless Technology Innovation Institute, Key Laboratory of Universal Wireless Communication, Minist
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BOTELLA Carmen
Department of Signals and Systems, Chalmers University of Technology
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Li Jingya
Wireless Technology Innovation Institute Key Laboratory Of Universal Wireless Communication Ministry
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Botella Carmen
Department Of Signals And Systems Chalmers University Of Technology
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Tao Xiaofeng
Wireless Technology Innovation Institute Key Laboratory Of Universal Wireless Communication Ministry
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