Proportional control and deterministic protection of QoS in IEEE 802.11e wireless LAN

ABSTRACT

Recently, wireless LAN is achieving remarkable growth, and maturity. On the other hand, by the advance of the Internet, the demand for the multimedia communication services which include video and voice will be expected to grow. Therefore, in the future, the mechanism of QoS guarantee must be realized even in wireless LAN environment. So far, IEEE 802.11e EDCF has been proposed, which is a contention based channel access method to achieve the QoS guarantee in wireless LAN. However, this cannot realize the desired throughput ratio or deterministic target throughput in principle. In this paper, we expand the EDCF to solve such QoS issues and enable more flexible QoS control. Moreover, we show the effectiveness of our proposal by computer simulation.

REFERENCES

• 1: B. P. Crow, I. Widjaja, J. G. Kim, and P. T. Sakai: "IEEE 802.11 Wireless Local Area Networks," IEEE Commun. Mag., vol. 35, no. 9, pp. 116--126, Sept. 1999.
• 2: S. Mangold, S. Choi, G. R. Hiertz, O. Klein, and B. Walke: "Analysis of IEEE 802.11e for QoS Support in Wireless LANs," IEEE Wireless Communications, vol. 10, no. 6, pp. 40--50 (Dec. 2003).
• 3: Qiang Ni , Lamia Romdhani , Thierry Turletti, A survey of QoS enhancements for IEEE 802.11 wireless LAN: Research Articles, Wireless Communications & Mobile Computing, v.4 n.5, p.547-566, August 2004 [doi>10.1002/wcm.v4:5]
• 4: Y. Xiao: "IEEE 802.11e: QoS Provisioning at the MAC Layer," IEEE Wireless Communications, vol. 11, no. 3, pp. 72--79 (June 2004).
• 5: Anders Lindgren , Andreas Almquist , Olov Schelén, Quality of service schemes for IEEE 802.11 wireless LANs: an evaluation, Mobile Networks and Applications, v.8 n.3, p.223-235, June 2003 [doi>10.1023/A:1023389530496]
• 6: Qixiang Pang , Soung C. Liew , Jack Y. B. Lee , Victor C. M. Leung, Performance evaluation of an adaptive backoff scheme for WLAN: Research Articles, Wireless Communications & Mobile Computing, v.4 n.8, p.867-879, December 2004 [doi>10.1002/wcm.v4:8]
• 7: L. Romdhani, Q. Ni, and T. Turletti: "Adaptive EDCF: Enhanced Service Differentiation for IEEE 802.11 Wireless Ad-hoc Networks," in Proc. IEEE WCNC, (Mar. 2003).
• 8: M. Malli, Q. Ni, T. Turletti, and C. Barakat: "Adaptive Fair Channel Allocation for QoS Enhancement in IEEE 802.11 Wireless LANs," in Proc. IEEE ICC, (June 2004).
• 9: C. Dovrolis and P. Ramanathan: "A Case for Relative Differentiated Services and the Proportional Differentiation Model," IEEE Network, vol. 13, no. 5, pp. 26--34 (Sept./Oct. 1999).
• 10: Y. Chen, C. Qiao, M. Hamdi and D. H. K. Tsang: "Proportional Differentiation: A Scalable QoS Approach," IEEE Commun. Mag, vol. 41, no. 6, pp. 52--58 (June 2003).
• 11: ns-2: "http://www.isi.edu/nsnam/ns/"
• 12: R. Jain, A. Durresi, and G. Babic: "Throughput Fairness Index: An Explanation," ATM Forum/99-0045, (Feb. 1999).

INDEX TERMS

Primary Classification:
  C. Computer Systems Organization
  C.2 COMPUTER-COMMUNICATION NETWORKS
      C.2.1 Network Architecture and Design
          Subjects: Wireless communication

Additional Classification:
  C. Computer Systems Organization
  C.2 COMPUTER-COMMUNICATION NETWORKS
      C.2.3 Network Operations
      C.2.5 Local and Wide-Area Networks

General Terms:
Algorithms, Design, Measurement, Performance