Abstract
In this paper, we propose a new differentiated service model, referred to as Differentiated Service-EDCA (DS-EDCA), for the Enhanced Distributed Channel Access (EDCA) of IEEE 802.11e wireless local area networks (WLANs). With DS-EDCA, both strict priority and weighted fair service can be provided. The strict priority service is provided for high priority traffic through carefully setting the EDCA parameter sets of lower priority traffic; the proportional fairness service is enabled by determining the backoff intervals according to the distributed scheduling discipline (DFS). We also propose a hierarchical link sharing model for IEEE 802.11e WLANs, in which AP and mobile stations are allocated different amounts of link resource. The performance of DS-EDCA and EDCA is compared via ns-2 simulations. The results show that DS-EDCA outperforms the original EDCA in terms of its support for both strict priority and weighted fair service. More importantly, DS-EDCA can be easily implemented, and is compatible to the IEEE 802.11 Standard.
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International standard [for] information technology—Telecommunications and information exchange between systems—Local and metropolitan area networks—specific requirements—Part 11: Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) Specifications, Amendmenet 8: Medium Access Control (MAC) Quality of service enhancements, IEEE 802.11 WG, 2005
Wi-Fi Alliance (2004) Wi-Fi Certified for WMM™—Support for multimedia applications with quality of service in Wi-Fi® networks
Parekh AK, Gallager RG (1993) A generalized processor sharing approach to flow control in integrated services networks: the single-node case. IEEE/ACM Trans Netw 1(3):344–357 (June)
Lee JF, Sun Y, Chen MC (2002) WF2Q-M: a worst-case fair weighted fair queueing with maximum rate control. IEEE GLOBECOM :1576–1580
Lu S, Nandagopal T, Bharghavan V (1998) A wireless fair service algorithm for packet cellular networks. ACM Mobicom :10–20
Vaidya NH, Bahl P, Gupta S (2000) Distributed fair scheduling in wireless lAN. ACM Mobicom :167–178
Qiao Daji, Shin Kang G. (2002) Achieving efficient channel utilization and weighted fairness for data communications in IEEE 802.11 WALN under the DCF. ACM IWQoS :227-236
Pattara-Atikom Wasan, Banerjee Sujata, Krishnamurthy Prashant (2002) Starvation prevention and quality of service in wireless LANs. IEEE WPMC, Honolulu, HI, October 2002
Malli M, Ni Q, Turletti T, Barakat C (2004) Adaptive fair channel allocation for QoS enhancement in IEEE 802.11 Wireless LANs. IEEE ICC, Paris, France, July 2004
Chou CT, Shin KG, Shankar SN (2003) Inter-frame space (IFS) based service differentiation for IEEE 802.11 Wireless LANs. IEEE VTC
Golestani S (1994) A self-clocked fair queueing scheme for broadband applications. IEEE INFOCOM’94, Toronto, CA, June 1994
Shreedhar M, Varghese G (1996) Efficient fair queuing using deficit round-robin. IEEE/ACM Trans Netw 4(3):375–385
Available: http://ftp:Nftp-sop.inria.fr/rodeo/qni/ns-edcf.tar.gz
Jain R, Babic G, Nagendra B, Lam C (1996) Fairness, call establishment latency and other performance metrics. Tech. Rep. ATM_Forum/96-1173, ATM Forum Document, August
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A preliminary version of this paper has been published in Proc. IEEE Globecom 2005.
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Lee, J.F., Liao, W. & Chen, M.C. A Differentiated Service Model for Enhanced Distributed Channel Access (EDCA) of IEEE 802.11e WLANs. Mobile Netw Appl 12, 69–77 (2007). https://doi.org/10.1007/s11036-006-0007-8
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DOI: https://doi.org/10.1007/s11036-006-0007-8