TCRA:: a time-based channel reservation scheme for handover requests in LEO satellite systems

被引：19

作者：

Boukhatem, L

Beylot, AL

Gaïti, D

Pujolle, G

机构：

[1] Univ Paris 06, Lab LIP 6, F-75252 Paris, France

[2] ENSEEIHT, IRIT TeSA 2, F-31071 Toulouse 7, France

[3] Univ Technol Troyes, Lab LM2S, F-10010 Troyes, France

来源：

INTERNATIONAL JOURNAL OF SATELLITE COMMUNICATIONS AND NETWORKING | 2003年 / 21卷 / 03期

关键词：

satellite communications; handover; LEO satellites; channel reservation; performance analysis;

D O I：

10.1002/sat.739

中图分类号：

V [航空、航天];

学科分类号：

08 ; 0825 ;

摘要：

In this paper, we propose a time-based channel reservation algorithm (TCRA) suitable for handover and call admission control procedures in future mobile satellite systems. These systems are characterized by a high rate of handover attempts which can degrade significantly their performance. Therefore, we propose TCRA, a scheme which guarantees a null handover failure probability by using a channel reservation strategy in the cells to be crossed by the user. The performance of TCRA has been compared to the guaranteed handover (GH) scheme. The TCRA reservation method has the advantage of a better channel utilization by locking the resources only for their expected time of use. A mathematical model has been developed for both schemes, and its results have been validated through simulations. Copyright (C) 2003 John Wiley Sons, Ltd.

引用

页码：227 / 240

页数：14