TDMA数字蜂窝通信系统的容量

[1992 Proceedings] Vehicular Technology Society 42nd VTS Conference - Frontiers of Technology Pub Date : 1992-05-10 DOI:10.1109/VETEC.1992.245243

E. Sourour

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引用次数: 2

摘要

讨论了基于北美数字时分多址(TDMA)标准的erlang系统容量评估问题。提出了两种不同频率计划的蒙特卡罗模拟研究，即具有三个扇区/小区的七蜂窝簇和具有六个扇区/小区的四蜂窝簇。假设小区半径相等，用户密度在小区间均匀分布。在前向载波(基站到移动单元)中，允许移动单元在目标扇区中均匀移动，并且在目标移动单元的每个位置评估来自所有共信道基站的载波与共信道的干扰比。评估Erlang负载与阻塞概率的关系。研究了TDMA时隙分配技术对移动设备业务请求的影响。在对数正态阴影下，假设传播路径损耗与r/sup -n/成正比。

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Capacity of TDMA digital cellular communication system

The evaluation of system capacity in Erlangs, based on the North American digital time division multiple access (TDMA) standards, is addressed. A Monte Carlo simulation study of two different frequency plans, namely, seven-cell clusters with three sectors/cell and four-cell clusters with six sectors/cell is presented. Cells are assumed to be equal in radius and the user density is assumed to be uniformly distributed among the cells. In the forward carrier (base station to mobile unit) a mobile unit is allowed to move uniformly in a target sector and the carrier to cochannel interference ratio from all cochannel base stations is evaluated at every location of the target mobile unit. The Erlang load versus the blocking probability is evaluated. The effect of the TDMA time slot assignment technique when a mobile unit requests service, is studied. The propagation path loss is assumed to be proportional to r/sup -n/ with log-normal shadowing.<>

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[1992 Proceedings] Vehicular Technology Society 42nd VTS Conference - Frontiers of Technology

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