Wireless Measurement Based Resource Allocation for QoS Provisioning over IEEE 802.11 Wireless Lan

Jae Young Pyun, Yoon Kim, Kyung Hun Jang, Jong Ae Park, Sung Jea Ko

Research output: Contribution to journalArticlepeer-review

21 Citations (Scopus)


In this paper, we propose a measurement based TCP-friendly rate control (TFRC) that adjusts the coding rates according to the channel characteristics of the wireless-to-wired network. To avoid the throughput degradation of multimedia flows traveling through wireless link, the proposed rate control system employs a new loss differentiation algorithm using packet loss statistics. This method can eliminate the effect of wireless losses in flow control and substantially reduce the abrupt quality degradation of the video streaming caused by the unreliable wireless link status. Experimental results show that the proposed rate control system produces the TCP-friendly rates while sharing the backbone bandwidth with TCP flows. Moreover, error resilient coding methods can be easily applied to the proposed TFRC by using the packet loss statistics.

Original languageEnglish
Pages (from-to)614-620
Number of pages7
JournalIEEE Transactions on Consumer Electronics
Issue number3
Publication statusPublished - 2003 Aug

Bibliographical note

Funding Information:
This work was supported by a grant from Samsung Advanced Institute of Technology. Jae-Young Pyun, Yoon Kim, and Sung-Jea Ko are with the Department of Electronics Engineering, Korea University, Seoul, Korea (e-mail: {jypyun, yooni, sjko}@dali.korea.ac.kr). Kyung Hun Jang and Jong Ae Park are with Samsung Advanced Institute of Technology, Suwon, Koera (e-mail : {khjang, japark}@samsung.com).


  • Error resilience
  • Rate control
  • TCP-friendly
  • Wireless LAN

ASJC Scopus subject areas

  • Media Technology
  • Electrical and Electronic Engineering


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