Call for Paper - March 2023 Edition
IJCA solicits original research papers for the March 2023 Edition. Last date of manuscript submission is February 20, 2023. Read More

Finer Tuning Of QoS Mechanisms for Performance Enhancement of Wireless Networks

International Journal of Computer Applications
© 2013 by IJCA Journal
Volume 67 - Number 16
Year of Publication: 2013
Melina Maria Afonso
Nagaraj K. Vernekar

Melina Maria Afonso and Nagaraj K Vernekar. Article: Finer Tuning Of QoS Mechanisms for Performance Enhancement of Wireless Networks. International Journal of Computer Applications 67(16):32-35, April 2013. Full text available. BibTeX

	author = {Melina Maria Afonso and Nagaraj K. Vernekar},
	title = {Article: Finer Tuning Of QoS Mechanisms for Performance Enhancement of Wireless Networks},
	journal = {International Journal of Computer Applications},
	year = {2013},
	volume = {67},
	number = {16},
	pages = {32-35},
	month = {April},
	note = {Full text available}


WLAN is supported by almost all of the modern communication devices. These devices are largely used for communication of multimedia data including real time data. There is limited QoS support in WLANs, which will become an impediment in deploying multimedia applications. The important QoS metrics for multimedia applications are delay, jitter, loss, and throughput. There are different mechanisms and techniques for controlling these metrics. A lot of work has been carried out as far as loss and throughput is concerned. This paper focuses mainly on reducing the delay and jitter. A study of the various QoS support mechanisms for wireless networks is carried out and suggestions for improvement have been proposed particularly pertaining to the MAC parameters which will lead to a more precise and finer tuning of the already available mechanisms.


  • Daniel Tangyi Fokum, " The Effects Of MAC Layer Parameters On Quality Of Service Provided By 802. 11E",A Thesis in Computer Science Presented to the Faculty of the University of Missouri-Kansas City in partial fulfillment of the requirements for the degree MASTER OF SCIENCE.
  • W. Pattara-Atikom et al. , "Distributed Mechanisms for Quality of Service in Wireless LANs", IEEE Wireless Communications Magazine, June 2003, pp. 26-34.
  • Sunghyun Choi et al. , "IEEE 802. 11e Contention-Based Channel Access (EDCF) Performance Evaluation", Multimedia and Wireless Networking Laboratory (MWNL) School of Electrical Engineering Seoul National University, Seoul, Korea ,Wireless Communications and Networking Philips Research USA Briarcliff Manor, New York, USA
  • L. Romdhani et al. , "Adaptive EDCF: enhanced service differentiation for IEEE 802. 11 wireless ad-hoc networks," Wireless Communications and Networking Conference, 2003, (WCNC 2003), pp. 1373-1378.
  • Daniel Fokum and Cory Beard, "A Scheme For Improved Delay and Frame Drop Probabilities In 802. 11e Networks" Daniel Fokum and Cory Beard School of Computing and Engineering, University of Missouri – Kansas City 534 Robert H. Flarsheim Hall 5110 Rockhill Road, Kansas City, MO 64110 USA
  • Yang Xiao, Member, IEEE, and Haizhon Li, Student Member, IEEE, "Voice and Video Transmissions with Global Data Parameter Control for the IEEE 802. 11e Enhance Distributed Channel Access", IEEE Transactions on Parallel and Distributed System, VOL. 15, NO. 11, November 2004
  • Chao-Yu Kuo ,Yi-Hung Huang , Kuan-Cheng Lin , "Performance enhancement of IEEE 802. 11 DCF using novel backoff algorithm" , EURASIP Journal on Wireless Communications and Networking 2012.
  • JengFarn Lee, Wanjiun Liao, Jie-Ming Chen, and Hsiu-Hui Lee, "A Practical QoS Solution toVoice over IP in IEEE 802. 11 WLANs" IEEE Communications Magazine,April 2009
  • Stefan Mangold, Sunghyun Choi, Peter May, Ole Klein, Guido Hiertz, Lothar Stibor, "IEEE 802. 11e Wireless LAN for Quality of Service".
  • Ping Wang, Hai Jiang, and Weihua Zhuang, "IEEE 802. 11E Enhancement For Voice Service", IEEE Wireless Communications, February 2006