Journal of Communications and Networks

The Korean Institute of Commucations and Information Sciences (한국통신학회)
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QoS Packet-Scheduling Scheme for VoIP Services in IEEE 802.16e Systems

  • Received : 2007.05.15
  • Accepted : 2008.03.11
  • Published : 2009.02.28
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Abstract

The IEEE 802.16 wireless metropolitan area network (WMAN) standard is designed to correct expensive communication costs in CDMA-based mobile communication systems and limited coverage problems in wireless LAN systems. Thus, the IEEE 802.16e standard can provide mobile high-speed packet access between mobile stations and the Internet service provider through the base station with cheap communication fees. To efficiently accommodate voice over IP (VoIP) services in IEEE 802.16 systems, an uplink quality of service packet-scheduling scheme is proposed, and its performance is evaluated with an NS-2 network simulator in this paper. Numerical results show that this proposed scheme can increase the system capacity by 100% more than in the unsolicited rand service (UGS) scheme and 30% more than the extended real-time polling service (ertPS) scheme, respectively.

Keywords

References

  1. IEEE std 802.16-2004, part 16: Air interface for fixed broadband wireless access systems, Oct. 2004
  2. IEEE std 802.16e-2005, part 16: Air interface for fixed and mobile broadband wireless access systems, Feb. 28, 2006
  3. P. Bender, P. Black, M. Grob, R. Padovani, N. Sindhushyana, and S. Viterbi, 'CDMA/HDR: A bandwidth-efficient high-speed wireless data service for nomadic users,' IEEE Commun. Mag., vol. 38, pp. 70–77, July 2000 https://doi.org/10.1109/35.852034
  4. M. Andrews, K. Kumaran, K. Ramanan, A. Stolyar, P. Whiting, and R. Vijayakuma, 'Providing quality of service over a shared wireless link,' IEEE Commun. Mag., vol. 39, pp. 150–154, Feb. 2001
  5. C. G. Kang, 'QoS and packet scheduling forWiBro,' in Proc. KRnet 2005, Seoul, Korea, 27 June 2005, pp. 98–103
  6. K. Wongthavarawat and A. Ganz, 'Packet scheduling for QoS support in IEEE 802.16 broadband wireless access systems,' Int. J. Commun. Syst., vol. 16, pp. 81–96, 2003
  7. H. Lee, T. Kwon, and D. Cho, 'Extended-rtPS algorithm for VoIP services in IEEE 802.16 system,' in Proc. JCCI 2006, Busan, Korea, May 2006
  8. D. Niyato and E. Hossain, 'A queuing-theoretic and optimization-based model for radio resource management in IEEE 802.16 broadband wireless networks,' IEEE Trans. Comput., vol. 55, pp. 1473–1488, Nov. 2006
  9. M. J. Hossain, M. S. Alouini, and V. K. Bhargava, 'Multi-user opportunistic scheduling using power controlled hierarchical constellations,' IEEE Trans. Wireless Commun., vol. 6, pp. 1581–1586, May 2007
  10. M. J. Hossain, M. S. Alouini, and V. K. Bhargava, 'Rate adaptive hierarchical modulation-assisted two-user opportunistic scheduling,' IEEE Trans. Wireless Commun., vol. 6, pp. 2076–2085, June 2007
  11. D. Liao, L. Li, S. Xu, and H. Yu, 'Opportunistic scheduling with multiple QoS constraints in wireless multiservice networks,' in Proc. IEEE WCNC 2007, HongKong, China, Mar. 2007, pp. 1524–1528
  12. S. McCanne and S. Floyd, 'NS network simulator,' version 2.28. [Online]. Available: http://www.isi.edu/nsnam/ns