[1]鲁蔚锋,刘江帅,杨绿溪.两跳中继OFDMA蜂窝系统的上行链路覆盖分析[J].东南大学学报(自然科学版),2016,46(5):917-922.[doi:10.3969/j.issn.1001-0505.2016.05.003]
 Lu Weifeng,Liu Jiangshuai,Yang Lüxi.Uplink coverage analysis on two-hop relay OFDMA cellular systems[J].Journal of Southeast University (Natural Science Edition),2016,46(5):917-922.[doi:10.3969/j.issn.1001-0505.2016.05.003]
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两跳中继OFDMA蜂窝系统的上行链路覆盖分析()
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《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
46
期数:
2016年第5期
页码:
917-922
栏目:
信息与通信工程
出版日期:
2016-09-20

文章信息/Info

Title:
Uplink coverage analysis on two-hop relay OFDMA cellular systems
作者:
鲁蔚锋123刘江帅1杨绿溪2
1南京邮电大学计算机学院, 南京 210003; 2东南大学信息科学与工程学院, 南京 210096; 3南京邮电大学宽带无线通信与传感网技术教育部重点实验室, 南京 210003
Author(s):
Lu Weifeng123 Liu Jiangshuai1 Yang Lüxi2
1College of Computer, Nanjing University of Posts and Telecommunications, Nanjing 210003, China
2School of Information Science and Engineering, Southeast University, Nanjing 210096, China
3Key Laboratory of Broadband Wireless Communication and Sensor Network Technology, Nanjing University of Posts and Telecommunications, Nanjing 210003, China
关键词:
正交频分多址接入 两跳中继 上行链路 覆盖分析
Keywords:
OFDMA(orthogonal frequency division multiple access) two-hop relay uplink coverage analysis
分类号:
TN929.5
DOI:
10.3969/j.issn.1001-0505.2016.05.003
摘要:
为了增加传统OFDMA蜂窝系统的上行链路覆盖,采用了两跳中继方式.在两跳中继蜂窝系统模型的基础上,将概率理论应用于基于译码转发中继的OFDMA系统中.通过数值计算,获得两跳中继OFDMA蜂窝系统的上行链路覆盖闭合表达式,并提出了有效覆盖半径的概念.假设用户在小区范围内服从均匀分布,从两跳中继系统的上行链路出发,分别对单小区和多小区情况下的覆盖性能进行理论分析,得到了系统覆盖优化模型,然后采用迭代算法对中继站部署的最优位置进行求解.最后实验结果表明,在多小区情况下,两跳中继蜂窝系统所获得的有效覆盖半径要明显小于单小区情况.此外,通过选取合适的参数,整个系统可以获得最大的有效覆盖半径.
Abstract:
To increase the uplink coverage of traditional OFDMA(orthogonal frequency division multiple access)cellular systems, a two-hop relay was adopted. Based on the system model of the two-hop relay cellular systems, the probability theory was applied to DF(decode-and-forward)relay-enhanced OFDMA systems. The closed form expressions of the model on the system coverage were obtained by mathematical calculating and a definition of the effective coverage radius was proposed. Assuming that users were obeyed with a uniform distribution in the cell, the coverage performance of single cell and multi-cells for the uplink transmission were analyzed, respectively. Then, the optimization model of the system coverage was derived, and an iterative algorithm was used to determine the optimal position of the relay station. The experimental results show that when considering the multi-cell scenario,the effective coverage radius of the two-hop relay cellular systems was significantly smaller than that of the single cell. Moreover, by selecting the appropriate parameters, the entire system can obtain the maximum effective coverage radius.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期: 2016-03-11.
作者简介: 鲁蔚锋(1979—),男,博士,副教授,luwf@njupt.edu.cn.
基金项目: 国家自然科学基金资助项目(61372101,61201160)、江苏省高等学校优势学科建设工程资助项目(yx002001)、江苏省高校自然科学研究面上资助项目(16KJB510034)、南京邮电大学校引进人才科研启动基金资助项目(NY212012, NY214065).
引用本文: 鲁蔚锋,刘江帅,杨绿溪.两跳中继OFDMA蜂窝系统的上行链路覆盖分析[J].东南大学学报(自然科学版),2016,46(5):917-922. DOI:10.3969/j.issn.1001-0505.2016.05.003.
更新日期/Last Update: 2016-09-20