Throughput analysis of TCP-friendly rate control in mobile hotspots

Sangheon Pack, Xuemin Shen, Jon W. Mark, Lin Cai

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

By integrating wireless wide area networks (WWANs) and wireless local area networks (WLANs), mobile hotspot technologies enable seamless Internet multimedia services to users on-board a vehicle. In this paper, we investigate the performance of TCP-Friendly Rate Control (TFRC) protocol supporting multimedia services in mobile hotspots. To quantify the throughput of TFRC flows in mobile hotspots, we first develop discrete-time queuing models for the WWAN link and the WLAN link. We then derive the steady state TFRC throughput using an iterative algorithm. Analytical and extensive simulation results reveal how the end-to-end TFRC throughput is affected by the number of users in a mobile hotspot, the vehicle velocity, the WWAN/WLAN link bandwidth, the retransmission limit, and the buffer size. It is found that the WWAN channel profile and link bandwidth have significant impacts on the TFRC throughput, and therefore suitable resource allocation and admission control are indispensable for the quality and efficiency of multimedia services in mobile hotspots.

Original languageEnglish
Pages (from-to)193-203
Number of pages11
JournalIEEE Transactions on Wireless Communications
Volume7
Issue number1
DOIs
Publication statusPublished - 2008 Jan 1

Fingerprint

Wide area networks
Rate Control
Hot Spot
Multimedia services
Wireless networks
Throughput
Wireless local area networks (WLAN)
Wireless Local Area Network (WLAN)
Multimedia
Telecommunication links
Bandwidth
Queuing Model
Flow control
Access control
Admission Control
Discrete-time Model
Resource allocation
Resource Allocation
Iterative Algorithm
Internet

Keywords

  • Mobile hotspot
  • Performance analysis
  • TCP-friendly rate control
  • TFRC throughput

ASJC Scopus subject areas

  • Engineering(all)
  • Computer Networks and Communications

Cite this

Throughput analysis of TCP-friendly rate control in mobile hotspots. / Pack, Sangheon; Shen, Xuemin; Mark, Jon W.; Cai, Lin.

In: IEEE Transactions on Wireless Communications, Vol. 7, No. 1, 01.01.2008, p. 193-203.

Research output: Contribution to journalArticle

Pack, Sangheon ; Shen, Xuemin ; Mark, Jon W. ; Cai, Lin. / Throughput analysis of TCP-friendly rate control in mobile hotspots. In: IEEE Transactions on Wireless Communications. 2008 ; Vol. 7, No. 1. pp. 193-203.
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