Congestion and access control policies of multi-priority instant services for IP-based CDMA radio access networks

Xie Jianwei, Fan Pingyi, Khaled Letaief

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

IP Radio Access Networks (RAN) are expected to employ CDMA as the next generation access networks [1]. In the previous work, the problem about congestion of voice in IP-based CDMA RAN was examined and several policies were brought forward and evaluated with the assistance of simulations [2]. In this paper, we first develop a mathematical model to investigate the multi-region soft-handoff of the IP-based CDMA RAN and analyze its systematic characteristics. The effectiveness of the developed mathematical model is demonstrated by simulations. We then propose a Max-Leg-Limit control policy to improve the system performance in terms of the blocking rate and the number of users. We also extend it to a more general situation, where instant video, instant data and voice are provided within an IP-based CDMA RAN. For such a multiple priority instant service system, we propose two control mechanisms, Borrow-Leg and Router Buffer Preservation, to control the quality of services. Simulation shows that the control mechanisms are effective in keeping the quality of multi-priority services.

Original languageEnglish
Title of host publication2007 IEEE Wireless Communications and Networking Conference, WCNC 2007
Pages3841-3846
Number of pages6
DOIs
Publication statusPublished - 2007
Externally publishedYes
Event2007 IEEE Wireless Communications and Networking Conference, WCNC 2007 - Kowloon, China
Duration: 11 Mar 200715 Mar 2007

Other

Other2007 IEEE Wireless Communications and Networking Conference, WCNC 2007
CountryChina
CityKowloon
Period11/3/0715/3/07

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ASJC Scopus subject areas

  • Engineering(all)

Cite this

Jianwei, X., Pingyi, F., & Letaief, K. (2007). Congestion and access control policies of multi-priority instant services for IP-based CDMA radio access networks. In 2007 IEEE Wireless Communications and Networking Conference, WCNC 2007 (pp. 3841-3846). [4204878] https://doi.org/10.1109/WCNC.2007.702