Resource Allocation of Limited Feedback in Clustered Wireless Mesh Networks

Authors:
Lei Xu;Yuwang Yang;Yaping Li
Affiliations:
School of Computer Science and Engineering, Nanjing University of Science and Technology, Nanjing, China 210096;School of Computer Science and Engineering, Nanjing University of Science and Technology, Nanjing, China 210096;School of Economics and Management, Nanjing University of Aeronautics and Astronautics, Nanjing, China 210006
Venue:
Wireless Personal Communications: An International Journal
Year:
2014

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Abstract

This paper focuses on resource allocation problem of limited feedback in OFDM-based clustered wireless mesh networks. Firstly, the channel quantization codebook is designed according to the equal probability quantizer and joint power, rate and channel quantization threshold codebook scheme (PRCQT) is proposed. Secondly, we deduce the subcarrier allocation criterion utilizing the Lagrange multiplier method. Finally, stochastic resource allocation scheme of limited feedback (SRALF) utilizing the stochastic optimization tools for OFDM-based clustered WMNs is proposed. Simulation results demonstrate SRALF+PRCQT scheme not only improves the network throughput, but also has advantage of limited feedback overhead.