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多小区OFDMA系统中的分布式资源分配策略研究

邱晶1,2;冯文江2;邹卫霞1
  

  1. (1. 北京邮电大学 电信工程学院,北京 100876;
    2. 重庆大学 通信工程学院,重庆 400044)
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2008-04-20 发布日期:2008-03-28
  • 通讯作者: 邱晶

Study of distributed resource allocation in multi-cell OFDMA systems

QIU Jing1,2;FENG Wen-jiang2;ZOU Wei-xia1
  

  1. (1. Beijing Univ. of Post and Telecommunications, Beijing 100876, China;
    2. Inst. of Telecommunications, Chongqing Univ., Chongqing 400044, China)
  • Received:1900-01-01 Revised:1900-01-01 Online:2008-04-20 Published:2008-03-28
  • Contact: QIU Jing

摘要: 针对多小区OFDMA系统中的上行动态子载波和功率分配问题,提出了一种基于潜博弈模型的分布式功率控制算法,各移动台根据本地信息按照最佳反应动态原则依次更新自己的功率,理论分析和仿真结果均表明系统具有惟一的稳定状态.该功率控制算法能迅速收敛于稳定状态.与纯迭代注水算法相比,该算法对系统的能量效率有显著提高.

关键词: 多小区OFDMA, 分布式资源分配, 潜博弈

Abstract: A potential game theoretic solution for distributed uplink dynamic subcarrier and power allocation in multi-cell OFDMA systems is presented, with each mobile station updating its own power level based on local information according to the best response dynamic. Theoretical analysis and simulation results show that there exists a unique steady state and that the proposed distributed power control algorithm can converge to the steady state quickly. The algorithm can achieve a much higher energy efficiency compared with the pure iterative water-filling algorithm.

Key words: multi-cell OFDMA, distributed resource allocation, potential game

中图分类号: 

  • TN929.5