东北大学学报:自然科学版 ›› 2014, Vol. 35 ›› Issue (11): 1535-1538.DOI: 10.12068/j.issn.1005-3026.2014.11.004

• 信息与控制 • 上一篇    下一篇

一种有效的比例公平算法

刘福来1,丘惠珍2,周庆平3,杜瑞燕1   

  1. (1. 东北大学秦皇岛分校 计算机与通信工程学院, 河北 秦皇岛066004; 2. 东北大学 信息科学与工程学院, 辽宁 沈阳110819;3. 唐山师范学院, 河北 唐山063000)
  • 收稿日期:2013-10-21 修回日期:2013-10-21 出版日期:2014-11-15 发布日期:2014-07-03
  • 通讯作者: 刘福来
  • 作者简介:刘福来(1975-),男,河北唐山人,东北大学秦皇岛分校教授,博士生导师.
  • 基金资助:
    新世纪优秀人才支持计划项目(NCET-13-0105);中央高校基本科研业务费专项资金资助项目(N120423002);河北省高校百名优秀创新人才支持计划项目(BR2-259);河北省教育厅资助项目(Z2011129);教育部博士学科点专项基金资助项目(20130042110003);辽宁省高等学校优秀人才支持计划项目(LJQ2012022);唐山市科技局资助项目(12140204A-3).

An Effective Proportional Fairness Algorithm

LIU Fulai1, QIU Huizhen2, ZHOU Qingping3, DU Ruiyan1   

  1. 1. School of Computer & Communication Engineering, Northeastern University at Qinhuangdao, Qinhuangdao 066004, China; 2. School of Information Science & Engineering, Northeastern University, Shenyang 110819, China; 3. Tangshan Normal University, Tangshan 063000, China.
  • Received:2013-10-21 Revised:2013-10-21 Online:2014-11-15 Published:2014-07-03
  • Contact: QIU Huizhen
  • About author:-
  • Supported by:
    -

摘要: 针对基于OFDM的认知无线电系统中多个认知用户之间的频谱资源分配问题,提出了一种比特和功率分配算法.首先,对认知用户的发射功率加以约束以保证认知用户的通信质量;然后运用“两部分法”并引入比例分配因子来避免认知用户的频谱资源分配不均衡问题;最后对所提算法进行了仿真,其中对认知用户的分配结果表明所提算法不仅能够保证每个用户的通信质量而且能够提升信道总容量.

关键词: OFDM, 认知无线电, 频谱资源分配, 通信质量, 比例分配因子

Abstract: To solve the spectrum resource allocation problem of multiuser in cognitive radio system based on OFDM, a bit and power allocation algorithm was proposed. Firstly, the transmit power of secondary users was constrained to guarantee the communication quality of service (QoS) of secondary user. Secondly, the twostep method and the proportion gene were used to avoid the disequilibrium of spectrum resource allocation. Finally, the algorithm was simulated and the results of the allocation about secondary users showed that the presented method could not only guarantee each user’s QoS but also increase the channel capacity.

Key words: OFDM(orthogonal frequency division multiplexing), cognitive radio, spectrum resource allocation, QoS(quality of service), proportion gene

中图分类号: