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清华大学学报(自然科学版)  2017, Vol. 57 Issue (11): 1190-1195    DOI: 10.16511/j.cnki.qhdxxb.2017.21.027
  电子工程 本期目录 | 过刊浏览 | 高级检索 |
部分全双工蜂窝网线性部署下的性能分析
毕文平1, 粟欣2, 肖立民2, 周世东1,2
1. 清华大学 电子工程系, 微波与数字通信国家重点实验室, 北京 100084;
2. 清华大学 信息科学与技术国家实验室, 北京 100084
Linear deployment performance analysis of a fractional full duplex cellular network
BI Wenping1, SU Xin2, XIAO Limin2, ZHOU Shidong1,2
1. State Key Laboratory on Microwave and Digital Communications, Department of Electronic Engineering, Tsinghua University, Beijing 100084, China;
2. Tsinghua National Laboratory for Information Science and Technology, Tsinghua University, Beijing 100084, China
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摘要 同频同时全双工(FD)通信由于其理论上可以提高一倍的频谱效率而获得了广泛关注。但是在全双工蜂窝网中,严重的小区间干扰极大地影响了系统性能。为了缓解严重的干扰,提高系统频谱效率,该文提出了一种部分全双工资源分配方案。该方案将时频资源划分为全双工资源块和半双工资源块,然后根据所服务用户的信道信息对时频资源进行分配,针对Wyner一维系统模型,将用户按其所处位置进行划分和资源分配,推导了不同划分门限下系统的频谱效率,得到了最优划分距离。仿真结果表明:相比完全全双工和完全半双工通信,部分全双工能够有效提高系统的频谱效率。
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毕文平
粟欣
肖立民
周世东
关键词 全双工半双工资源分配    
Abstract:In-band full duplex (FD) communications are attracting more attention due to their potential to double the spectral efficiency (SE). However, severe inter-cell interference will degrade the system performance. A fractional FD (FFD) resource allocation strategy was developed to reduce the effect of severe interference in the system SE. The radio resources are first classified into FD resource blocks and half duplex resource blocks with all the blocks allocated to the users based on the channel condition of each user. The Wyner model was used to evaluate the system performance. The user positions were used to partition the resource blocks and as the user classification criterion. Simulate SE and optimal partition radii for different classification thresholds show that this method can significantly improve the system SE.
Key wordsfull duplex    halfduplex    resource allocation
收稿日期: 2017-01-13      出版日期: 2017-11-15
ZTFLH:  TN929.5  
通讯作者: 周世东,教授,E-mail:zhousd@tsinghua.edu.cn     E-mail: zhousd@tsinghua.edu.cn
引用本文:   
毕文平, 粟欣, 肖立民, 周世东. 部分全双工蜂窝网线性部署下的性能分析[J]. 清华大学学报(自然科学版), 2017, 57(11): 1190-1195.
BI Wenping, SU Xin, XIAO Limin, ZHOU Shidong. Linear deployment performance analysis of a fractional full duplex cellular network. Journal of Tsinghua University(Science and Technology), 2017, 57(11): 1190-1195.
链接本文:  
http://jst.tsinghuajournals.com/CN/10.16511/j.cnki.qhdxxb.2017.21.027  或          http://jst.tsinghuajournals.com/CN/Y2017/V57/I11/1190
  图1 全双工和同步的时分双工小区干扰示意图
  图2 一维部分全双工网络示意图
  图3 干扰用户位置为平均位置的最优划分距离
  表1 仿真参数
  图4 频谱效率随全双工划分距离的变化
  图5 频谱效率随自干扰抑制能力的变化,此处α=0.8
  图6 不同基站间隔时的全双工划分距离所占比例
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