J4 ›› 2012, Vol. 39 ›› Issue (4): 39-45.doi: 10.3969/j.issn.1001-2400.2012.04.008

• 研究论文 • 上一篇    下一篇

WRAN多小区上行链路信道与功率的联合分配

刘英挺1,2;李晨曦1;张海林2;韩鹍3;刘淑华2;卢小峰2   

  1. (1. 甘肃省电力公司 信息通信公司,甘肃 兰州  730050;
    2. 西安电子科技大学 综合业务网理论及关键技术国家重点实验室,陕西 西安  710071;
    3. 西安通信学院 指挥信息系统系,陕西 西安  710106)
  • 收稿日期:2011-09-06 出版日期:2012-08-20 发布日期:2012-10-08
  • 通讯作者: 刘英挺
  • 作者简介:刘英挺(1982-),男,高级工程师,博士,E-mail: ytliu@xidian.edu.cn.
  • 基金资助:

    国家自然科学基金资助项目(61072069); 111基地资助项目(B08038); 综合业务网理论及关键技术国家重点实验室资助项目(ISN090105); 中央高校基本科研业务费专项资金资助项目(72105242,K50510010027); 陕西省自然科学基础研究计划资助项目(2010JM8001)

Joint channel and power allocation for the uplink in  multi-cells of the WRAN

LIU Yingting1,2;LI Chenxi1;ZHANG Hailin2;HAN Kun3;LIU Shuhua2;LU Xiaofeng2   

  1. (1. Info. and Comm. Company of Gansu Electric Power Corp., Lanzhou 730050, China;
    2. State Key Lab. of Integrated Service Networks, Xidian Univ., Xi'an  710071, China;
    3. Dept. of Command Information System, Xi'an Communication Inst., Xi'an  710106, China)
  • Received:2011-09-06 Online:2012-08-20 Published:2012-10-08
  • Contact: LIU Yingting

摘要:

首先分析了无线区域网中无线麦克风与认知用户之间的共存问题,建立了新的无线麦克风与认知用户之间的共存模型.在此基础上,将无线区域网中多小区上行链路的信道和功率联合分配建模为势博弈,建立了每个认知用户的效用函数和系统的效用函数,并给出了数学证明.算法在执行过程中,各认知用户依据最优反应原则更新自己的策略.相比暴力搜索算法,该算法的复杂度很低.仿真结果验证了该算法的收敛性和正确性.

关键词: 无线区域网, 认知无线电, 博弈论, 信道分配, 功率分配

Abstract:

A new WM-CPE coexistence model is established based on the analysis of the interference between consumer premise equipments (CPEs) and wireless microphones (WMs) in the Wireless Regional Area Network (WRAN). The proposed joint channel and power allocation game for the uplink in multi-cells of the WRAN can be formulated as a potential game and it is guaranteed to converge to a Nash equilibrium when the best response strategy is performed after observing the opponent's response. The user's utility function and the system's potential function are given and proved. The proposed algorithm has lower complexity than the brute-force (BF) search. Simulation results verify the convergence and correctness.

Key words: wireless regional area network, cognitive radio, game theory, channel allocation, power allocation