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 language | English |
|---|---|
| Pages (from-to) | 3717-3727 |
| Number of pages | 11 |
| Journal | IEEE Transactions on Wireless Communications |
| Volume | 6 |
| Issue number | 10 |
| DOIs | |
| Publication status | Published - 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.
Keywords
- Integrated WWAN-WLAN link
- Markov model
- Mobile hotspot
- Performance analysis
ASJC Scopus subject areas
- Computer Science Applications
- Electrical and Electronic Engineering
- Applied Mathematics