基于能效最优准则的双跳中继网络功率分配算法

冀保峰; 杨佳; 王一丹; 胡莹; 李春国; 宋梁

doi:10.11959/j.issn.1000-436x.2016140

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基于能效最优准则的双跳中继网络功率分配算法

学术论文 | 更新时间：2024-06-05

- 基于能效最优准则的双跳中继网络功率分配算法
- Power allocation algorithms in two-hop relaying networks based on optimal energy efficiency
- 通信学报 2016年37卷第7期页码：124-131
- 作者机构：
  
  1. 河南科技大学信息工程学院，河南洛阳 471023
  2. 东南大学毫米波国家重点实验室，江苏南京 210096
  3. 中国洛阳电子装备试验中心，河南洛阳 471023
  4. 江苏科技大学电子信息学院，江苏镇江 212003
  5. 多伦多大学，安大略多伦多 M5S 2E8
- 作者简介：
  
  [ "冀保峰（1985-），男，河南洛阳人，河南科技大学讲师，主要研究方向为协作通信技术、中继网络、毫米波 MIMO、干扰管理等。" ]
  [ "杨佳（1983-），男，江苏海州人，中国洛阳电子装备试验中心工程师，主要研究方向为通信网络对抗等。" ]
  [ "王一丹（1992-），女，河南洛阳人，河南科技大学硕士生，主要研究方向为协同通信技术、毫米波MIMO等。" ]
  [ "胡莹（1981-），女，江苏金坛人，东南大学博士后，江苏科技大学讲师，主要研究方向为MIMO通信信号处理、多用户信号处理和动态资源分配等。" ]
  [ "李春国（1983-），男，山东胶州人，东南大学副教授，主要研究方向为中继网络、干扰协调、MIMO信号处理等。" ]
  [ "宋梁（1980-），男，加拿大人，加拿大多伦多大学教授，主要研究方向为认知网络、低功耗网络、分布式计算。" ]
- 基金信息：
  
  国家自然科学基金资助项目(U1404615);国家自然科学基金资助项目(61201172);国家自然科学基金资助项目(61201176);国家自然科学基金资助项目(61372101);毫米波国家重点实验室开放课题基金资助项目(K201504);中国博士后基金资助项目(2015M571637);国家科技重大专项基金资助项目(2013ZX03003006-002);国家科技重大专项基金资助项目(2012ZX03004005-003);河南省自然科学基金资助项目(142300410343);河南科技大学青年基金资助项目(2014QN030);河南科技大学教育教学改革基金资助项目(2015YB-033)
- DOI：10.11959/j.issn.1000-436x.2016140
  中图分类号： TN925
- 网络出版日期：2016-07，
  
  纸质出版日期：2016-07-25
- 稿件说明：
移动端阅览
冀保峰, 杨佳, 王一丹, 等. 基于能效最优准则的双跳中继网络功率分配算法[J]. 通信学报, 2016,37(7):124-131.

Bao-feng JI, Jia YANG, Yi-dan WANG, et al. Power allocation algorithms in two-hop relaying networks based on optimal energy efficiency[J]. Journal of communications, 2016, 37(7): 124-131.
冀保峰, 杨佳, 王一丹, 等. 基于能效最优准则的双跳中继网络功率分配算法[J]. 通信学报, 2016,37(7):124-131. DOI： 10.11959/j.issn.1000-436x.2016140.

Bao-feng JI, Jia YANG, Yi-dan WANG, et al. Power allocation algorithms in two-hop relaying networks based on optimal energy efficiency[J]. Journal of communications, 2016, 37(7): 124-131. DOI： 10.11959/j.issn.1000-436x.2016140.

摘要

针对单天线多跳系统中的资源分配策略进行了研究，重点研究了基于能效最优的功率分配算法。所提算法以系统能效最大化为设计目标，以满足指定的系统服务质量(QoS

quality of service)为约束条件，建立了以源节点和中继节点发射功率为设计变量的数学优化模型。通过大信噪比区间近似等效，将原始的非凸优化问题转化为凸优化问题。再利用拉格朗日对偶函数凸优化算法，并借助于LambertW函数，最终得到一种功率分配方案的闭合形式解，避免了采用交替迭代方法来求解最优化问题。相比传统以系统频谱效率最大化为目标的算法，所提算法能更好地提升系统整体能效，同时降低了功率分配算法的复杂度。

Abstract

The joint source-relay power allocation issue in green dual-hop single antenna relaying systems was investi-gated from the energy efficiency point of view. By considering a practical power consumption model

the optimal algo-rithm in order to satisfy the constraints of system quality of service was proposed. The non-convex problem was con-verted into the convex problem through high power approximation and then the highly complicated optimization problem was solved by deliberately manipulating the Lagrangian function using the properties of the Lambert function. The opti-mal transmit power of the source and that of the relay are derived in the form of analytical expressions based on the maximization of EE with a guarantee of the required spectral efficiency(SE).It is shown that the optimal relay-to-source power ratio is adaptive to the ratio of the instantaneous two-hop channel gains. Numerical simulations have illustrated the effectiveness of proposed scheme.

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