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计算机工程 ›› 2012, Vol. 38 ›› Issue (7): 63-65. doi: 10.3969/j.issn.1000-3428.2012.07.021

• 网络与通信 • 上一篇    下一篇

基于网络编码的线性多跳网络最优功率分配

胡 磊,吴玉成   

  1. (重庆大学通信工程学院,重庆 400044)
  • 收稿日期:2011-06-13 出版日期:2012-04-05 发布日期:2012-04-05
  • 作者简介:胡 磊(1986-),男,硕士研究生,主研方向:无线通信,网络编码;吴玉成,教授
  • 基金资助:
    国家自然科学基金资助项目(60872038);中国博士后科学基金资助项目(20090450787)

Optimal Power Allocation for Linear Multi-hop Network Based on Network Coding

HU Lei, WU Yu-cheng   

  1. (College of Communication Engineering, Chongqing University, Chongqing 400044, China)
  • Received:2011-06-13 Online:2012-04-05 Published:2012-04-05

摘要: 在瑞利衰落环境中,提出一种基于物理层网络编码的双向线性多跳网络最优功率分配方案。在系统中断概率一定的条件下,以最小化系统总功率为目标,利用凸优化理论获取各节点的分配功率。数值结果显示,该方案能得到各节点的最优发送功率,并且随着节点数目或者路径损失因子的增大,节省的系统总功率越多。

关键词: 物理层网络编码, 最优功率分配, 瑞利衰落, 线性多跳网络, 中断概率

Abstract: In a Rayleigh fading environment, an Optimal Power Allocation(OPA) scheme is proposed for the linear multi-hop network based on physical-layer network coding. Under the system outage probability constraint, the OPA scheme is realized by minimizing the total power consumption and using convex optimization theory. Numerical result shows that the OPA scheme can get the optimal transmission of each node power, and it reduces the total transmit power, especially when the node number or the path loss factor is large.

Key words: physical-layer network coding, Optimal Power Allocation(OPA), Rayleigh fading, linear multi-hop network, outage probability

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