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Integrating SIP and IEEE 802.11e to support handoff and multi-grade QoS for VoIP applications

Published: 02 October 2006 Publication History

Abstract

With the increasing popularity of wireless networks and the growing demand for VoIP services, there is a need to guarantee QoS for VoIP calls while supporting as many calls as possible. This paper considers the handoff and QoS issues of VoIP calls under IEEE 802.11e WLANs. Assuming that VoIP calls can be supported by multiple levels of QoS, we show how to conduct call admission control and handoff by integrating SIP and QoS mechanisms of IEEE 802.11e. The proposed scheme is designed to dynamically adjust the resource distribution among existing calls according to the network condition. Multi-level QoS is achieved by adjusting codecs and packetization intervals of calls. The result shows better utilization of bandwidth, decreased blocking rate for new calls, and less dropping rate for handoff calls. In addition, we also show how to achieve early resumption of resources as calls leave a QAP. Simulation result is presented to evaluate the performance of the proposed schemes

References

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IEEE Std 802.11e-2005, Part 11: Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) specifications. Amendment 8: Medium Access Control (MAC) Quality of Service Enhancements. Nov 2005.
[2]
P.-Y. Wu, Y.-C. Tseng, and H. Lee. Design of QoS and Admission Control for VoIP Services over IEEE 802.11e WLANs. National Computer Symposium, 2005. Taiwan.
[3]
S. Garg and M. Kappes. Can I add a VoIP Call? In Proc. of International Conference on Communications (ICC 2003), 26(1), May 2003.
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N. Nasser. Adaptability Enhanced Framework for Provisioning Connection-level QoS in Multimedia Wireless Networks. IEEE and IFIP International Conference on Wireless and Optical Communications Networks (WOCN), pages 275--279, Mar 2005.
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C.-T. Chou and K.-G. Shin. Analysis of Adaptive Bandwidth Allocation in Wireless Networks with Multilevel Degradable Quality of Service.IEEE Trans. on Mobile Computing, 3(1):5--17, Jan./Feb. 2004.
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G. Karlsson. Asynchronous transfer of video. IEEE Communication Magazine,11:118--126, Aug 1996.
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M. Handley and V. Jacobson. SDP: Session Description Protocol, RFC2327. in IETF, 1998.
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Recommended Practice for Multi-Vendor Acess Point Interoperability via an Inter-Access Point Protocol Across Distribution Systems Supporting IEEE 802.11 Operation. IEEE Draft 802.1f/Final Version, Jan 2003.
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Y.-C. Kim, D.-E. Lee, B.-J. Lee, Y.-S. Kim, and B. Mukherjee. Dynamic Channel Reservation based on Mobility in Wireless ATM. Proc. of IEEE wmATM'99, pages 100--106, 1999.

Cited By

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  • (2009)A Novel real time voice quality testing model for VoIP ambience environment in wireless LANProceedings of the First international conference on COMmunication Systems And NETworks10.5555/1702135.1702151(104-108)Online publication date: 5-Jan-2009
  • (2009)Adaptive Codec Selection for VoIP in Multi-Rate WLANsHandbook of Research on Wireless Multimedia10.4018/978-1-59904-820-8.ch005(122-156)Online publication date: 2009
  • (2009)A novel real time voice quality testing model for VoIP ambience environment in wireless LAN2009 First International Communication Systems and Networks and Workshops10.1109/COMSNETS.2009.4808845(1-5)Online publication date: Jan-2009
  • Show More Cited By

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  1. Integrating SIP and IEEE 802.11e to support handoff and multi-grade QoS for VoIP applications

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      cover image ACM Conferences
      Q2SWinet '06: Proceedings of the 2nd ACM international workshop on Quality of service & security for wireless and mobile networks
      October 2006
      146 pages
      ISBN:1595934863
      DOI:10.1145/1163673
      Permission to make digital or hard copies of all or part of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. Copyrights for components of this work owned by others than ACM must be honored. Abstracting with credit is permitted. To copy otherwise, or republish, to post on servers or to redistribute to lists, requires prior specific permission and/or a fee. Request permissions from [email protected]

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      Publication History

      Published: 02 October 2006

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      Author Tags

      1. IEEE 802.11e
      2. call admission control (CAC)
      3. handoff
      4. quality of service (QoS)
      5. session initiation protocol (SIP)
      6. voice over IP (VoIP)
      7. wireless network

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      Cited By

      View all
      • (2009)A Novel real time voice quality testing model for VoIP ambience environment in wireless LANProceedings of the First international conference on COMmunication Systems And NETworks10.5555/1702135.1702151(104-108)Online publication date: 5-Jan-2009
      • (2009)Adaptive Codec Selection for VoIP in Multi-Rate WLANsHandbook of Research on Wireless Multimedia10.4018/978-1-59904-820-8.ch005(122-156)Online publication date: 2009
      • (2009)A novel real time voice quality testing model for VoIP ambience environment in wireless LAN2009 First International Communication Systems and Networks and Workshops10.1109/COMSNETS.2009.4808845(1-5)Online publication date: Jan-2009
      • (2009)Packet Scheduling and Congestion ControlTraffic and QoS Management in Wireless Multimedia Networks10.1007/978-0-387-85573-8_2(13-87)Online publication date: 17-Mar-2009

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