系统工程与电子技术

• 通信与网络 • 上一篇    下一篇

联合OFDM技术的协作复数域网络编码算法

张祖凡1,2, 吴爱爱2, 杨  静2, 景小荣1,2   

  1. 1. 重庆邮电大学移动通信技术重庆市重点实验室, 重庆 400065;
    2. 重庆邮电大学通信与信息工程学院, 重庆 400065
  • 出版日期:2013-10-25 发布日期:2010-01-03

Joint cooperative complex field network coding and OFDM technology algorithm

ZHANG Zu-fan 1,2, WU Ai-ai2, YANG Jing2, JING Xiao-rong1,2   

  1. 1.Chongqing Key Laboratory of Mobile Communication, Chongqing University of Posts and Telecommunications, Chongqing 400065, China;
    2. School of Communications and Information Engineering, Chongqing University of Posts and Telecommunications, Chongqing 400065, China
  • Online:2013-10-25 Published:2010-01-03

摘要:

提出了一种正交频分复用(orthogonal frequency division multiplex, OFDM)技术与协作复数域网络编码有机结合的OFDM-协作复数域网络编码(OFDM-cooperative complex field network coding, OFDM-CCFNC) 算法。理论分析了该算法的系统误帧率和频谱利用率,仿真结果表明,该算法能够克服无线信道的频率选择性衰落影响,提高系统频谱利用率。另外,基于最小化系统误帧率给出了该算法下的一种最优系统功率分配策略。

Abstract:

An orthogonal frequency division multiplex-cooperative complex field network coding(OFDM-CCFNC) algorithm is proposed, which combines orthogonal frequency division multiplex and cooperative complex field network coding. The system frame error rate and spectrum efficiency are theoretically analyzed, and the simulation results show that the proposed algorithm overcomes the influence of the frequency selectively fading of channels and improves system spectrum efficiency. Finally, an optimal system power allocation scheme is also presented based on the minimum system frame error rate for the proposed algorithm.