| 利用中继提高小区高数据速率覆盖的研究 |
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| 引用本文： | 陈莎莎,杨宁,田辉,沈树群.利用中继提高小区高数据速率覆盖的研究[J].无线电工程,2008,38(2):1-3. |
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| 作者姓名： | 陈莎莎 杨宁 田辉 沈树群 |
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| 作者单位： | 1. 北京邮电大学,电子工程学院,北京,100876
2. 北京邮电大学,无线新技术研究所,北京,100876 |
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| 摘 要： | 利用中继将传统蜂窝网络中基站到移动台的直接链路拆分成两跳或多跳,能够有效地克服路径损耗和阴影衰落的影响,从而提高小区高数据速率覆盖范围。对比分析在蜂窝网络中引入固定中继和移动中继2种形式,可以得出当小区中的用户随机分布并且用户数较多时,采用移动中继较为合适;在用户数较少或者用户服从均匀分布时,则应采用固定中继。
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| 关 键 词： | 中继 蜂窝网络 路径损耗 阴影衰落 |
| 文章编号： | 1003-3106(2008)02-0001-03 |
| 修稿时间： | 2007年8月5日 |
Research on High Data Rate Coverage Enhancement in Cellular System Using Relay |
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| CHEN Sha-sha,YANG Ning,TIAN Hui,SHEN Shu-qun.Research on High Data Rate Coverage Enhancement in Cellular System Using Relay[J].Radio Engineering of China,2008,38(2):1-3. |
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| Authors: | CHEN Sha-sha YANG Ning TIAN Hui SHEN Shu-qun |
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| Abstract: | In a conventional cellular system,base stations and mobile stations communicate directly.However,the BS-MS link can be divided into two or more hops by using relays.This can reduce the influence of path loss and lognormal shadowing and increase high data rate coverage.Two forms of relays,fix relay and mobile relay are analyzed.Main factors affecting the performance of relays are simulated by MATLAB.The simulation results show that if the spatial distribution of users is random and the number of users is large,mobile relay will be effective;but when the number of users is small or the spatial distribution of users is even,fix relay should be used. |
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| Keywords: | relay cellular network path loss lognormal shadowing |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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