分布式天线系统中的系统上行中断概率分析

王俊波; 王金元; 林敏; 陈明

doi:10.3724/SP.J.1146.2010.00955

分布式天线系统中的系统上行中断概率分析

doi: 10.3724/SP.J.1146.2010.00955

基金项目:

国家自然科学基金(60972023)，国家科技重大专项(2010ZX03003- 002，2010ZX03003-004)，东南大学移动通信国家重点实验室开放研究基金(2010D01)和研究基金(2010A06)，区域光纤通信网与新型光通信系统国家重点实验室开放课题(2008SH06)和南京航空航天大学基本科研业务费专项科研项目(NS2010091)资助课题

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出版历程
- 收稿日期: 2010-09-03
- 修回日期: 2011-02-14
- 刊出日期: 2011-05-19

System Uplink Outage Probability Analysis in Distributed Antenna Systems

摘要

摘要: 中断概率是无线通信系统的一个重要指标。该文针对分布式天线系统中的系统中断概率问题进行了研究。首先，建立了包含路径损耗、阴影衰落和瑞利衰落的复合信道模型；然后，在该信道模型下推导出给定移动台位置时的信噪比；接着，基于选择合并策略，分析出给定移动台位置时系统上行传输的中断概率表达式；最后，考虑到小区内移动台任意分布特点，文章给出系统上行中断概率闭合理论表达式。仿真结果表明，所提的系统上行中断概率理论表达式与仿真结果十分吻合。
- 无线通信 /
- 分布式天线系统 /
- 系统中断概率 /
- 选择合并 /
- 上行传输 /
- 复合信道
Abstract: Outage probability is an important parameter in wireless communication systems. This paper studies the system outage probability in the Distributed Antenna Systems (DAS). Firstly, this paper establishes a composite channel model which takes into account three factors such as path loss, lognormal shadowing and Rayleigh fading. Based on the established channel model, the Signal-to-Noise Ratio (SNR) of Mobile Station (MS) over a given position is derived. Then, an uplink transmission expression of the outage probability for the MS over a given position is derived by employing the selective combining. Further, considering the distribution of MSs in the cell, a closed-form expression of the system outage probability is obtained. Numerical results show that the closed-form expression of the system uplink outage probability can match with the simulation results very well.
- Wireless communication /
- Distributed Antenna Systems (DAS) /
- System outage probability /
- Selective combining /
- Uplink transmission /
- Composite channel

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