J4 ›› 2012, Vol. 39 ›› Issue (3): 27-33+42.doi: 10.3969/j.issn.1001-2400.2012.03.005

• 研究论文 • 上一篇    下一篇



  1. (1. 西安电子科技大学 综合业务网理论及关键技术国家重点实验室,陕西 西安  710071;
    2. 西安通信学院,陕西 西安  710106)
  • 收稿日期:2011-08-05 出版日期:2012-06-20 发布日期:2012-07-03
  • 通讯作者: 郭超平
  • 作者简介:郭超平(1976-),男,西安电子科技大学博士研究生,E-mail: chpguo@gmail.com.
  • 基金资助:

    国家自然科学基金资助项目(61072069);国家科技重大专项基金资助项目(2011ZX03003-001-04,2012ZX03003-012);西安电子科技大学基本科研业务费资助项目(72001859);国家重点实验室专项基金资助项目(ISN090105);国家111 计划资助项目(B08038)

Relay selection and power allocation for the uplink in cooperative cellular networks

GUO Chaoping1,2;HAN Kun1,2;ZHANG Xiaolong1; LI Yongzhao1;ZHANG Hailin1   

  1. (1. State Key Lab. of Integrated Service Networks, Xidian Univ., Xi'an  710071, China;
    2. Xi'an Communication Inst., Xi'an  710106, China)
  • Received:2011-08-05 Online:2012-06-20 Published:2012-07-03
  • Contact: GUO Chaoping


为了最小化能量受限的协作蜂窝小区的总代价,提出了上行链路的功率和中继等资源分配的模型.该模型是一个非线性约束、{0,1}组合优化问题,因而提出了一种自适应的资源分配方案对其求解.针对给定中继节点集合,该方案分别为每个源节点选择总代价最小的中继;而对于给定源和中继对,提出了最小化二者总代价的基于图论的最优功率分配算法. 通过仿真和分析表明,该方案近似最优,能够发送更多的数据量,延长网络的寿命.

关键词: 协作通信, 资源分配, 放大转发, 功率分配, 中继选择, 代价


An assignment model of uplink resources, namely, power and relay, is proposed to minimize the total cost of energy-constrained cooperative networks. The model is a non-linear constraint, 0-1 integer programming problem. An adaptive resource allocation scheme is presented to solve it, which selects the relay with the lowest total cost for each source from the given relay set. A graphic-theory-based optimal power allocation algorithm is presented to minimize their total cost for a given source-relay pair. Simulation and analysis show that the scheme is suboptimal and can transmit more data than other algorithms and prolong network lifetime.

Key words: cooperative communications, resource allocation, amplify-and-forward, power allocation, relay selection, cost


  • TN915.04