Performance analysis of mobile hotspots with heterogeneous wireless links

Sangheon Pack, Humphrey Rutagemwa, Jon W. Mark, Lin Cai

Research output: Contribution to journalArticlepeer-review

22 Citations (Scopus)

Abstract

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.

Original languageEnglish
Pages (from-to)3717-3727
Number of pages11
JournalIEEE Transactions on Wireless Communications
Volume6
Issue number10
DOIs
Publication statusPublished - 2007 Oct

Keywords

  • Integrated WWAN-WLAN link
  • Markov model
  • Mobile hotspot
  • Performance analysis

ASJC Scopus subject areas

  • Computer Science Applications
  • Electrical and Electronic Engineering
  • Applied Mathematics

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