[1]徐伟,赵睿.直达链路下的多用户分集与全双工中继系统[J].华侨大学学报(自然科学版),2020,41(1):103-112.[doi:10.11830/ISSN.1000-5013.201907036]
 XU Wei,ZHAO Rui.Multi-User Diversity and Full-Duplex Relay System With Direct Link[J].Journal of Huaqiao University(Natural Science),2020,41(1):103-112.[doi:10.11830/ISSN.1000-5013.201907036]
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直达链路下的多用户分集与全双工中继系统()
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《华侨大学学报(自然科学版)》[ISSN:1000-5013/CN:35-1079/N]

卷:
第41卷
期数:
2020年第1期
页码:
103-112
栏目:
出版日期:
2020-01-20

文章信息/Info

Title:
Multi-User Diversity and Full-Duplex Relay System With Direct Link
文章编号:
1000-5013(2020)01-0103-10
作者:
徐伟 赵睿
华侨大学 厦门市移动多媒体通信重点实验室, 福建 厦门 361021
Author(s):
XU Wei ZHAO Rui
Xiamen Key Laboratory of Mobile Multimedia Communications, Huaqiao University, Xiamen 361021, China
关键词:
协作中继 全双工 直达链路 多用户分集 高斯-切比雪夫积分 吞吐量
Keywords:
cooperative relay full-duplex direct link multi-user diversity Gauss-Chebyshev quadrature throughput
分类号:
TN929.53
DOI:
10.11830/ISSN.1000-5013.201907036
文献标志码:
A
摘要:
针对多目的地传输网络,研究基于时间切换协议的全双工协作中继方案.考虑源和每个目的地之间存在直达链路,中继采用天线选择技术以实现最小化自干扰,目的地采用最大比合并技术以实现最大化接收信噪比.运用高斯-切比雪夫积分和次序统计量,推导出4种目的地选择策略下的延迟受限吞吐量近似闭合表达式.数值分析和蒙特-卡洛仿真结果表明:最佳吞吐量取决于协议的时间切换比和源功率分配比;与其他3种策略相比,最佳目的地选择策略更适用于分布式多用户选择网络;提高源发送功率或增加目的地个数均能显著提升系统吞吐量性能.
Abstract:
According to the multiple destination transmission network, a full-duplex cooperative relay scheme is investigated based on time switching protocol. Consider a direct link between the source and each destination, in the case of that the relay adopts antenna selection technology to minimize self-interference and the destination adopts the maximum ratio combining technology to maximize the received signal-to-noise ratio. The approximate closed expression for delay-limited throughput under four destination selection strategies are derived by using Gauss-Chebyshev quadrature and order statistic. The results of numerical analysis and Monte-Carlo simulations show that the optimal throughput critically depends on time switching and source power splitting coefficients of the protocol. The best destination selection strategy is more suitable for distributed multi-user selection network than the other three strategies. The systematical throughput performance can be significantly improved whether by increasing the source transmit power or increasing the number of destinations.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期: 2019-07-15
通信作者: 赵睿(1980-),男,副教授,博士,主要从事无人机通信和信号处理的研究.E-mail:rzhao@hqu.edu.cn.
基金项目: 国家自然科学基金资助项目(61401165, 61362018, 61302095); 华侨大学研究生科研创新能力培育计划资助项目(17013082033)
更新日期/Last Update: 2020-01-20