多小区CDMA系统D2D通信上行性能研究

doi:10.3969/j.issn.1000-3428.2013.07.003

计算机工程 ›› 2013, Vol. 39 ›› Issue (7): 11-15. doi: 10.3969/j.issn.1000-3428.2013.07.003

多小区CDMA系统D2D通信上行性能研究

程永生，董宇涵，张学聃，林孝康

(清华大学电子工程系，北京 100084)

收稿日期:2012-07-23 出版日期:2013-07-15 发布日期:2013-07-12
作者简介:程永生(1987－)，男，博士研究生，主研方向：无线通信；董宇涵、张学聃，讲师；林孝康，教授、博士生导师
基金资助:
清华-高通CDMA无线通信研究计划基金资助项目(20073000463)

Uplink Performance Research of Device-to-Device Communication in Multi-cell CDMA System

CHENG Yong-sheng, DONG Yu-han, ZHANG Xue-dan, LIN Xiao-kang

(Department of Electronic Engineering, Tsinghua University, Beijing 100084, China)

Received:2012-07-23 Online:2013-07-15 Published:2013-07-12

摘要/Abstract

摘要：

端到端(D2D)通信因能够提高蜂窝网的资源利用率而受到广泛关注。为研究D2D通信在多小区蜂窝系统中的应用性能，对多小区码分多址(CDMA)系统中引入D2D链路后的上行容量进行理论分析，通过系统级仿真，研究D2D链路的上行容量增益和影响该增益的主要因素。仿真结果表明，在多小区系统中，D2D链路能带来明显的容量增益，且链路性能与通信距离和链路在系统中的位置有关，而与系统负荷的关系不大。

关键词: 码分多址系统, 蜂窝系统, 端到端通信, 多小区, 上行容量增益, 系统负荷

Abstract:

Device-to-Device(D2D) communication attracts much research attention due to its ability to increase the efficiency of cellular networks. However, performance of D2D communication in multi-cell cellular systems is not fully addressed. Aiming at this problem, this paper analyzes the uplink capacity when D2D communication is enabled in a multi-cell Code Division Multiple Access(CDMA) system. System level simulation is conducted to evaluate the uplink capacity gain of D2D link and its affecting factors. Simulation results show that D2D communication provides significant capacity gain. In addition, the performance gain decreases with D2D link distance and increases with the position of the link in system, but stays almost constant over different system loads.

Key words: Code Division Multiple Access(CDMA) system, cellular system, Device-to-Device(D2D) communication, multi-cell, uplink capacity gain, system load

中图分类号:

TN929.5

程永生, 董宇涵, 张学聃, 林孝康. 多小区CDMA系统D2D通信上行性能研究[J]. 计算机工程, 2013, 39(7): 11-15.

CHENG Yong-Sheng, DONG Yu-Han, ZHANG Hua-Dan, LIN Xiao-Kang. Uplink Performance Research of Device-to-Device Communication in Multi-cell CDMA System[J]. Computer Engineering, 2013, 39(7): 11-15.

http://www.ecice06.com/CN/Y2013/V39/I7/11

参考文献

参考文献
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