应用科学学报 ›› 2013, Vol. 31 ›› Issue (4): 331-337.doi: 10.3969/j.issn.0255-8297.2013.04.001

• 通信工程 • 上一篇    下一篇

基于网络编码的能量最小化带宽分配方法

杜冠瑶1, 熊轲1,2, 李丹丹1, 张煜1, 裘正定1   

  1. 1. 北京交通大学信息科学研究所,北京100044
    2. 清华大学电子工程系,北京100084
  • 收稿日期:2012-01-06 修回日期:2012-11-28 出版日期:2013-07-27 发布日期:2012-11-28
  • 作者简介:杜冠瑶,博士生,研究方向:无线中继网络、下一代宽带通信系统,E-mail: 08112076@bjtu.edu.cn
  • 基金资助:

    国家自然科学基金(No.61201203);中国博士后科学基金(No.20100480329)资助

Bandwidth Allocation for Transmission Power Minimization with Network Coding in Two-Way Transmission Aware Relay-Aided Cellular Networks

DU Guan-yao1, XIONG Ke1,2, LI Dan-dan1, ZHANG Yu1, QIU Zheng-ding1   

  1. 1. Institute of Information Science, Beijing Jiaotong University, Beijing 100044, China
    2.Department of Electronic Engineering, Tsinghua University, Beijing 100084, China
  • Received:2012-01-06 Revised:2012-11-28 Online:2013-07-27 Published:2012-11-28

摘要: 结合网络编码研究支持双向对传模式的中继蜂窝小区的带宽分配问题. 首先给出直连链路传输模式和中继网络编码协作传输模式共存小区的带宽分配方法和用户传输模式选择策略,然后利用优化算法对小区中继位置、带宽资源分配、用户传输模式选择进行联合优化. 仿真结果表明,采用网络编码协作传输模式能比采用传统的解码转发传输模式至少延长移动用户8.59%的生命周期.

关键词: 中继蜂窝网络, 能量有效, 双向对传, 网络编码

Abstract: Reducing energy consumption and extending battery life for mobile terminals (MTs) are becoming increasingly important to mobile communications. This paper proposes a bandwidth allocation method to minimize MTs’ average transmission power with the help of network coding (NC) in relay-aided cellular
networks for two-way transmission. We first provide bandwidth allocation methods for direct transmission and relay-aided transmission respectively. An MT path selection strategy is then proposed. An optimization algorithm is presented to jointly optimize RS locations, bandwidth resources allocation, and MT path selection. Numerical results show that relays operating in the NC mode can extend MT battery life by at least 8.59% with respect to those operating in the decode-and-forward (DF) mode.

Key words:  relay-aided cellular network, energy efficiency, two-way transmission, network coding

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