Advertisement

Optimized Handover Schemes over WiMAX

  • Zina Jerjees
  • H. S. Al-Raweshidy
  • Zaineb Al-Banna
Part of the IFIP Advances in Information and Communication Technology book series (IFIPAICT, volume 308)

Abstract

Voice Over Internet Protocol (VoIP) applications have received significant interests from the Mobile WiMAX standard in terms of capabilities and means of delivery multimedia services, by providing high bandwidth over long-range transmission. However, one of the main problems of IEEE 802.16 is that it covers multi BS with too many profiled layers, which can lead to potential interoperability problems. The multi BS mode requires multiple BSs to be scanned synchronously before initiating the transmission of broadcast data. In this paper, we first identify the key issues for VoIP over WiMAX. Then we present a MAC Layer solution to guarantee the demanded bandwidth and supporting a higher possible throughput between two WiMAX end points during the handover. Moreover, we propose a PHY and MAC layers scheme to maintain the required communication channel quality for VoIP during handover. Results show that our proposed schemes can significantly improve the network throughput up to 55%, reducing the data dropped to 70% while satisfying VoIP quality requirements.

Keywords

WiMAX handover cross-layer 

References

  1. 1.
    IEEE Std 802.16-2004, IEEE Standard for Local and Metropolitan Area Networks, Part 16: Air Interface for Fixed Broadband Wireless Access SystemsGoogle Scholar
  2. 2.
    IEEE Std 802.16e-2005, IEEE Standard for Local and Metropolitan Area Networks, Part 16: Air Interface for Fixed Broadband Wireless Access Systems, Amendment 2: Physical and Medium Access Control Layers for Combined Fixed and Mobile Operation in Licensed Bands, Corrigendum 1Google Scholar
  3. 3.
    Etemad, K.: Overview of mobile WiMAX technology and evolution. IEEE Communications Magazine (October 2008)Google Scholar
  4. 4.
    Choi, S., Hwang, G.-H., Kwon, T., Lim, A.-R., Cho, D.-H.: Fast Handover Scheme for Real-Time Downlink Services in IEEE 802.16e BWA System. In: Vehicular Technology Conference (2005 IEEE 61st), vol. 3, pp. 2028–2032 (2005)Google Scholar
  5. 5.
    Speicher, S., Bünnig, C.: Fast MAC-Layer Scanning in IEEE 802.11 Fixed Relay Radio Access Networks. In: ICN/ICONS/MCL, April 23-29 (2006)Google Scholar
  6. 6.
    Kyung-ah, K., Chong-Kwon, K., Tongsok, K.: A seamless handover Mechanism for IEEE 802.16e Broadband Wireless Access. In: ISPC 2004 (2004)Google Scholar
  7. 7.
    Chen, L., Cai, X., Sofia, R., Huang, Z.: A Cross layer Fast Handover Scheme For Mobile WiMAX. IEEE Press, Los Alamitos (2007)CrossRefGoogle Scholar
  8. 8.
    Li, B.: Hong Kong University of Science and Technology Yang Qin and Chor Ping Low, Nanyang Technological University Choon Lim Gwee, Republic Polytechnic: A Survey on Mobile WiMAX. IEEE Communications Magazine (December 2007)Google Scholar
  9. 9.
    Walke, B.H., Mangold, S., Berlemann, L.: IEEE 802 Wireless Systems. John Wiley and Sons Ltd., Chichester (2006)CrossRefGoogle Scholar
  10. 10.
    Hu, R.Q., Paranchych, D., Fong, M.-H., Wu, G.: On the Evolution of Handoff Management and Network Architecture in WiMAX. IEEE, Los Alamitos (2007)CrossRefGoogle Scholar
  11. 11.
    Optimized Network Engineering Tools, OPNET Technologies, session 1827 (2007), http://www.opnet.com
  12. 12.
    Optimized Network Engineering Tools (2008), http://www.opnet.com
  13. 13.
    Rouil, R., Golmie, N.: Adaptive Channel Scanning for IEEE 802.16e. In: Proceedings of 25th Annual Military Communications Conference (MILCOM 2006), Washington, D.C., October 23-25 (2006)Google Scholar
  14. 14.
    Schwarz, H., Marpe, D. (Member, IEEE), Wiegand, T., (Member, IEEE): Overview of the Scalable Video Coding Extension of the H.264/AVC Standard. IEEE transactions on circuits and systems for video technology 17(9) (September 2007)Google Scholar

Copyright information

© IFIP International Federation for Information Processing 2009

Authors and Affiliations

  • Zina Jerjees
    • 1
  • H. S. Al-Raweshidy
    • 1
  • Zaineb Al-Banna
    • 1
  1. 1.Wireless Networks and Communications Centre (WNCC)Brunel UniversityLondonUK

Personalised recommendations