Sum Rate Analysis of Multi-pair Two-Way MIMO AF Relay System Based on Energy Harvesting

doi:10.3969/j.issn.0372-2112.2019.03.003

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Sum Rate Analysis of Multi-pair Two-Way MIMO AF Relay System Based on Energy Harvesting

更新时间：2025-07-02

- Sum Rate Analysis of Multi-pair Two-Way MIMO AF Relay System Based on Energy Harvesting
- Acta Electronica Sinica Vol. 47, Issue 3, Pages: 531-537(2019)
- 作者机构：
  
  1. 电子科技大学通信抗干扰技术国家级重点实验室,四川,成都,611731
  2. 中国电子科技集团公司第五十四所通信网信息传输与分发技术重点实验室,河北,石家庄,050081
  3. 电子科技大学通信抗干扰技术国家级重点实验室,四川,成都,611731
  4. 中国电子科技集团公司第五十四所通信网信息传输与分发技术重点实验室,河北,石家庄,050081
- 作者简介：
- 基金信息：
  
  National Natural Science Foundation of China (No.61831004, No.61571082);Fund for Research Innovation Project of National Key Laboratory of Science and Technology on Communications (No.IFN2018218);supported by National Defense Basic Scientific Research Program of China (No.JCKY2017204A603);National Defense Technology Innovation Special Zone Project;Open Project of Key Laboratory of Transmission and Distribution Technology of Communication Network Information (No.614210402070517)
- DOI：10.3969/j.issn.0372-2112.2019.03.003
  CLC： TN925
- Published Online：25 March 2019，
  
  Published：2019
- 稿件说明：
移动端阅览
Sum Rate Analysis of Multi-pair Two-Way MIMO AF Relay System Based on Energy Harvesting[J]. Acta Electronica Sinica, 2019, 47(3): 531-537.
DOI：

Sum Rate Analysis of Multi-pair Two-Way MIMO AF Relay System Based on Energy Harvesting[J]. Acta Electronica Sinica, 2019, 47(3): 531-537. DOI： 10.3969/j.issn.0372-2112.2019.03.003.

摘要

采用基于中继功率分配的能量收集方法，中继将接收到的部分射频信号转化为能量并利用收集到的能量放大和转发剩下的信号，通过在中继使用最大比合并/最大比传送的接收和预编码技术，推导出每个用户的遍历速率的下界表达式，然后研究了使所有用户和速率最大的最佳中继功率分配比.仿真结果说明了在最佳中继功率分配比的条件下可以得到最大的和速率，同时给出了和速率与中继天线数和用户对数的关系，并表明了在用户总功率一定的条件下，能量收集中继系统的性能优于传统的没有能量收集的中继系统.

Abstract

An energy harvesting method based on power splitting-based relay is adopted

where the relay converts part of the received radio frequency signals into energy and amplifies and forwards the remaining signal using the collected energy.By using maximum-ratio combining/maximum-radio transmission receiving and precoding technology at the relay node

the corresponding lower bound expressions for the ergodic rate of each user are derived and the optimal relay power allocation ratio which maximizes the sum rate of all users is calculated.The simulation results show that the maximum sum rate can be obtained under the optimal relay power allocation ratio

and the relationship between the sum rate with the number of relay antennas and the number of users is given.What's more

the performance of the relay system based on energy harvesting outperforms that without energy harvesting.

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