Cross-layer Optimized Vertical Handover Schemes between Mobile WiMAX and 3G Networks

被引：9

作者：

Jo, Jaeho ^{[1
]}

Cho, Jinsung ^{[1
]}

机构：

[1] Kyung Hee Univ, Dept Comp Engn, Yongin 446701, South Korea

来源：

KSII TRANSACTIONS ON INTERNET AND INFORMATION SYSTEMS | 2008年 / 2卷 / 04期

关键词：

Vertical handover; cross-layer optimization; mobile IP; mobile WiMAX; 3G network;

D O I：

10.3837/tiis.2008.04.001

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

Nowadays, wireless packet data services are provided over Wireless MAN (WMAN) at a high data service rate, while 3G cellular networks provide wide- area coverage at a low data service rate. The integration of mobile WiMAX and 3G networks is essential, to serve users requiring both high-speed wireless access as well as wide-area connectivity. In this paper, we propose a cross-layer optimization scheme for a vertical handover between mobile WiMAX and 3G cellular networks. More specifically, L2 (layer 2) and L3 (layer 3) signaling messages for a vertical handover are analyzed and reordered/combined, to optimize the handover procedure. Extensive simulations using ns-2 demonstrate that the proposed scheme enhances the performance of a vertical handover between mobile WiMAX and 3G networks: low handover latency, high TCP throughput, and low UDP packet loss ratio.

引用

页码：171 / 183

页数：13

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