Performance analysis of mobile hotspots with heterogeneous wireless links

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

Research output: Contribution to journalArticlepeer-review

24 Citations (Scopus)


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
Issue number10
Publication statusPublished - 2007 Oct

Bibliographical note

Funding Information:
Manuscript received March 8, 2006; revised August 13, 2006 and October 31, 2006; accepted November 3, 2006. The editor coordinating the review of this paper and approving it for publication was M. Zorzi. This work has been supported in part by a Strategic Grant from the Natural Sciences and Engineering Research Council (NSERC) of Canada under Grant No. STPGP 257682 and in part by the Korea Research Foundation Grant No. M01-2005-000-10073-0.


  • 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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