Performance analysis of mobile hotspots with heterogeneous wireless links

被引：19
作者：
Pack, Sangheon [1 ]
Rutagemwa, Humphrey
Shen, Xuemin Sherman
Mark, Jon W.
Cai, Lin
机构：
[1] Korea Univ, Sch Elect Engn, Seoul 136701, South Korea
[2] Univ Waterloo, Dept Elect & Comp Engn, Ctr Wireless Commun, Waterloo, ON N2L 3G1, Canada
[3] Univ Victoria, Dept Elect & Comp Engn, Victoria, BC, Canada
来源：
IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS | 2007年 / 6卷 / 10期
基金：
新加坡国家研究基金会; 加拿大自然科学与工程研究理事会;
关键词：
mobile hotspot; integrated WWAN-WLAN link; Markov model; performance analysis;
D O I：
10.1109/TWC.2007.060069
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Mobile hotspot enabling Internet access services in moving vehicles is an important service for ubiquitous computing. In this paper, we propose an analytical framework for studying the packet loss behavior and throughput in a mobile hotspot with heterogeneous wireless links. We first develop a two-state Markov model for the integrated wireless wide area network (WWAN) and wireless local area network (WLAN). We then derive the expressions that describe the experienced packet loss probability, packet loss burst length, and throughput. Finally, we present simulation results to verify the accuracy of our analysis. It is concluded that adaptive and cross-layer approaches should be deployed to improve the performance of mobile hotspots.
引用
收藏
页码：3717 / 3727
页数：11
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