Performance Analysis of Wireless Ad-Hoc Network Based on EDCA IEEE802.11e

Authors: Shah Ahsanuzzaman Md. Tariq, Fabrizio Granelli

Abstract:

IEEE 802.11e is the enhanced version of the IEEE 802.11 MAC dedicated to provide Quality of Service of wireless network. It supports QoS by the service differentiation and prioritization mechanism. Data traffic receives different priority based on QoS requirements. Fundamentally, applications are divided into four Access Categories (AC). Each AC has its own buffer queue and behaves as an independent backoff entity. Every frame with a specific priority of data traffic is assigned to one of these access categories. IEEE 802.11e EDCA (Enhanced Distributed Channel Access) is designed to enhance the IEEE 802.11 DCF (Distributed Coordination Function) mechanisms by providing a distributed access method that can support service differentiation among different classes of traffic. Performance of IEEE 802.11e MAC layer with different ACs is evaluated to understand the actual benefits deriving from the MAC enhancements.

Keywords: 802.11e, fairness, enhanced distributed channelaccess, access categories, quality of Service.

Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1062802

References:

[1] IEEE Standard 802.11: Wireless LAN medium access control (MAC) and physical layer (PHY) specifications: Medium access control (MAC) Quality of services (QoS) enhancements, IEEE 802.11e Std.
[2] D.Gu and J.Zhang, "Qos Enhancement in IEEE 802.11 Wireless Local Area Networks", IEEE Communication Magazine, vol 41, issue 6. pp.120-124, June 2003.
[3] D-J. Deng and R-S. Chang. "A priority scheme for IEEE 802.11 DCF access method". IEICE Transactions on Communications, E82-B(1), January 1999.
[4] Romdhani, L., Ni, Q., and Turletti, T.,"Adaptive EDCF: Enhanced Service Differentiation for IEEE 802.11 Wireless Ad-Hoc Networks", in the Proceedings of the IEEE WCNC-03.
[5] L. Gannoune, "A Comparative Study of Dynamic Adaptation Algorithms for Enhanced Service Differentiation in IEEE 802.11 Wireless Ad Hoc Networks," in AICT-ICIW -06: Proceedings of the Advanced Int-l Conference on Telecommunications and Int-l Conference on Internet and Web Applications and Services, Guadeloupe, French Carribean, February2006.
[6] Saurabh Sehrawat, Revoti Prasad Bora, Dheeraj Harihar, "Performance Analysis of QoS supported by Enhanced Distributed Channel Access (EDCA) mechanism in IEEE 802.11e",IAENG International Journal of Computer Science, 33:1, IJCS_33_1_6 .
[7] S. E. Housseini and H. Alnuweiri, "Adaptive Contention-Window MAC Algorithms for QoS-Enabled Wireless LANs," in International Conference on Wireless Networks, Communications, and Mobile Computing.
[8] D.He, C.Q.Shen, "Simulation Study if IEEE 802.11e EDCF", Proc.IEEE VTC-Spring 2003, Jeju, Korea, May 2003
[9] S. Mangold et al, "IEEE 802.11e Wireless LAN for Quality of Service", Proc. European Wireless, Florence, Italy, Feb 2002
[10] D. Grilo and M. Nunes. "Performance evaluation of IEEE 802.11E", Proc IEEE PIMRC, pp. 511-517, 2002.
[11] Amendment 7: Medium Access Control (MAC) Quality of Service (QoS) Enhancements IEEE P802.11e, October 2004.
[12] NS-2 tutorial, Webpage - http://www.isi.edu/nsnam/ns/tutorial/
[13] TraceGraphAnalysis, Webpage - http://tagus.inescid. pt/~pestrela/ns2/files/tracegraph_help_manual.txt
[14] Video Traffic Generation in ns2, Webpage - http://www.sce.carleton.ca/~amatrawy/mpeg4/
[15] IEEE802.11e patch, Webpage - http://www.tkn.tuberlin. de/research/802.11e_ns2/
[16] Mohamad El Masri, Slim Abdellatif, "Managing the virtual collision in IEEE 802.11e EDCA", IFAC International Conference on Fieldbuses and neTworks in industrial and embedded systems, Ansan : Korea, 2009.