Call for Paper - September 2022 Edition
IJCA solicits original research papers for the September 2022 Edition. Last date of manuscript submission is August 22, 2022. Read More

Performance Evaluation of Priority based Contention-MAC in Mobile Ad-Hoc Networks

International Journal of Computer Applications
© 2011 by IJCA Journal
Number 1 - Article 1
Year of Publication: 2011
Soni Sweta
Arun Nahar
Sanjeev Sharma

Soni Sweta, Arun Nahar and Sanjeev Sharma. Article: Performance Evaluation of Priority based Contention-MAC in Mobile Ad-Hoc Networks. International Journal of Computer Applications 25(1):37-41, July 2011. Full text available. BibTeX

	author = {Soni Sweta and Arun Nahar and Sanjeev Sharma},
	title = {Article: Performance Evaluation of Priority based Contention-MAC in Mobile Ad-Hoc Networks},
	journal = {International Journal of Computer Applications},
	year = {2011},
	volume = {25},
	number = {1},
	pages = {37-41},
	month = {July},
	note = {Full text available}


The communication through wireless media is in very much demand because of high mobility of the users and establishing ad hoc network in emergency situations, which requires the designing of an efficient and priority based MAC (Medium Access Protocol) to support quality of service in MANET (Mobile Ad hoc Networks) adequately. MAC is the base layer, which is required to catch up the system performance especially in mobile ad hoc wireless network. There are various MAC standards used in MANET. The IEEE 802.11 is one of them and most frequently applied to such networks presently. We found that the IEEE 802.11 MAC standard is not very much suitable into wireless network scenario because its poor performance and not satisfactorily addressing the critical issues of networking like priority based transmission across the nodes results in lower throughput, higher delay and poor fair access of cannels. In this paper, we propose a dynamic PBC-MAC protocol for wireless ad hoc networks - named as Priority Based Contention-MAC protocol- in which after the collision, contention window size increases or decreases dynamically and non-uniformly depending upon the priority levels of nodes in the network. It decides its lower Backoff time as per higher priority level of the nodes to access channel adequately. The simulation result show that PBC-MAC scheme is outperform than the Binary Exponential Backoff (BEB) scheme in the IEEE 802.11 MAC.


  • P Mohapatra, S Krishnamurthy. “Ad-Hoc Networks - Technologies and Protocols”, Springer Publishers, 2004 (ISBN: 0-387-22689-3).
  • IEEE standard for wireless LAN medium Access Control (MAC) and Physical Layer (PHY) specifications, ISO/IEC 8802-11:1999(E), Aug.1999.
  • L. Bononi, et al., “A differentiated distributed coordination function MAC protocol for cluster-based wireless ad hoc networks”, Proceedings of the 1st ACM international workshop on performance evaluation of wireless ad hoc, sensor, and ubiquitous networks, pp. 77 - 86, 2004.
  • Haitao Wu, Shiduan Cheng,et al, “IEEE 802.11 Distributed Coordination Function(DCF)” 0-7803-7400-2/02/$17.00 (C) 2002 IEEE
  • Jae H K, Ajith W, Injong R. “Experimental Evaluation of MAC Protocols for Fairness and QOS Support in Wireless Networks”. In the proc. of International Conference on Networking Protocols, pages 298—307, 2008.
  • C. Siva Ram Murthy and B. S. Manoj. “Ad Hoc Wireless Networks: Architectures and Protocols”, Pearson Education, ISBN13: 9780131470231 ISBN10: 0-13-147023-X, 2008.
  • Bianchi G, “Performance analysis of the IEEE802.11 Distributed Coordination Function”. IEEE,2000
  • Abdul Gafur, Niraj Upadhayaya and S A Sattar, “Achieving Enhanced Throughput in Mobile Ad hoc Network using Collision Aware MAC Protocol,” International Journal of Ad hoc, Sensor & Ubiquitous Computing (IJASUC) Vol.2, No.1, March 2011
  • Hastad J, Leighton T, and Regoff B, (1996). “Analysis of backoff protocol for multiple access channels”. SIAM Journal on Computing, pages 740—774.
  • QualNet 4.5 Programmer’s Guide, Scalable Network Technologies, Inc., 6701 Center Drive West, Suite 520, Los Angeles, CA 90045.
  • Scalable Network Technologies, “QualNet simulator 4.0 Version”, tutorial on /~vinkolar/QualNet/qualnet-tut1.pdf.
  • C.K. Toh. “Ad Hoc Mobile Wireless Networks: Protocols and Systems”, Springer Prentice Hall Publishers, ISBN 013 007 8174, 2001.
  • Imrich Chlamtac and et al., “Mobile ad hoc networking: imperatives and challenges”, Ad Hoc Networks 1,pp.13-64,2003
  • Chien-Min Wu, Hui-Kai Su, Wang-Hasi Yang, “Efficient Backoff Algorithm in Wireless Multihop Ad Hoc Networks”, International Journal of Advancements in Computing Technology, Volume 3, Number 1, February 2011.