Effects of cell distance on capacity of two-tier cellular networks

被引：2

作者：

Bazar, I ^{[1
]}

Onozato, Y ^{[1
]}

Jie, Z ^{[1
]}

机构：

[1] Gunma Univ, Dept Comp Sci, Kiryu, Gumma 376, Japan

来源：

ICUPC '98 - IEEE 1998 INTERNATIONAL CONFERENCE ON UNIVERSAL PERSONAL COMMUNICATIONS, VOLS 1 AND 2 | 1998年 / 1-2卷

关键词：

spectrum sharing; hierarchical cell structure; interference model; TDMA; CDMA;

D O I：

10.1109/ICUPC.1998.733032

中图分类号：

TN [电子技术、通信技术];

学科分类号：

0809 ;

摘要：

Two well known methods to increase capacity in cellular network TDMA and CDMA, will be evaluated on two-tier cellular structure. In order to use the network resources preciously, we consider sharing the available spectrum effectively between these tiers. We investigate two models, called System I and System II. In System I, CDMA access methods are employed in both layers. In System II, TDMA is deployed for users in microcell tier and CDMA for macrocell users. The results of numerical calculations are presented. The impact of interference caused by different distances among the related cells is assessed. It is shown that the capacity of the above systems is decreased as the distance of related cells becomes closer. The characteristics that System I is better than System II in terms of user capacity, can be recognized for various values of cell distances.

引用

页码：537 / 541

页数：5

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