Resource Allocation of Limited Feedback in Clustered Wireless Mesh Networks

被引:9
作者
Xu, Lei [1 ]
Yang, Yuwang [1 ]
Li, Yaping [2 ]
机构
[1] Nanjing Univ Sci & Technol, Sch Comp Sci & Engn, Nanjing 210096, Jiangsu, Peoples R China
[2] Nanjing Univ Aeronaut & Astronaut, Sch Econ & Management, Nanjing 210006, Jiangsu, Peoples R China
基金
中国国家自然科学基金;
关键词
Wireless mesh networks; OFDM; Resource allocation; Codebook design; KKT condition; MANAGEMENT;
D O I
10.1007/s11277-013-1396-1
中图分类号
TN [电子技术、通信技术];
学科分类号
0809 ;
摘要
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.
引用
收藏
页码:901 / 913
页数:13
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