Area spectral efficiency of a channel adaptive cellular mobile radio system in a correlated shadowed environment

VTC '98. 48th IEEE Vehicular Technology Conference. Pathway to Global Wireless Revolution (Cat. No.98CH36151) Pub Date : 1998-05-18 DOI:10.1109/VETEC.1998.686405

M. Tariq, A. Nix

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引用次数: 5

Abstract

In this paper, the average area spectral efficiency (ASE) in bits/sec/Hz/Km/sup 2/ of a variable transmission rate, high capacity cellular communication system is studied in a correlated shadowed environment. The effect on average ASE of the normalised reuse distance, shadowing variance, correlation between radio signals, coverage radius and cell sectorization is investigated by computer simulations. It is shown mathematically that the average ASE of an interference limited mobile radio channel increases with the increased shadowing variance. Downlink simulation results indicate that, the increase in shadowing correlation between the desired and the sum of the undesired signals reduces the average ASE whereas mutual correlation between individual interfering signals increases the average ASE. The variation of cell size on average ASE is also investigated. The results suggest small cell sizes in heavily shadowed areas are well suited for high-speed variable data rate transmissions.

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相关阴影环境下信道自适应蜂窝移动无线电系统的面积频谱效率

本文研究了在相关阴影环境下可变传输速率、高容量蜂窝通信系统的平均面积频谱效率(ASE)，单位为bits/sec/Hz/Km/sup / /。通过计算机仿真研究了归一化复用距离、阴影方差、无线电信号间相关性、覆盖半径和小区分割对平均ASE的影响。数学上表明，受干扰限制的移动无线电信道的平均ASE随阴影方差的增大而增大。下行仿真结果表明，期望信号和非期望信号之和之间阴影相关性的增加降低了平均ASE，而单个干扰信号之间的相互相关性增加了平均ASE。还研究了平均ASE细胞大小的变化。结果表明，在阴影严重的地区，小的小区尺寸非常适合高速可变数据速率传输。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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VTC '98. 48th IEEE Vehicular Technology Conference. Pathway to Global Wireless Revolution (Cat. No.98CH36151)

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