Design and analysis of the gateway relocation and admission control algorithm in mobile wimax networks

Zong Hua Liu*, Jyh-Cheng Chen

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

15 Scopus citations

Abstract

The WiMAX Forum has defined a two-tiered mobility management to minimize handover delay and packet loss. However, it leads to another problem: When to perform ASN GW relocation? The standards only define the ASN GW relocation procedures without specifying when the ASN GW relocation should be performed. It is left for vendors and operators to develop their own proprietary solutions. In this paper, we propose an algorithm, which incorporates traditional Admission Control (AC) and Wiener Process (WP)-based prediction algorithms to determine when to carry out ASN GW relocation. We further develop an analytical model to analyze the proposed algorithm. Simulations are also conducted to evaluate the performance of the proposed algorithm. The results show that the proposed algorithm can improve the performance significantly in terms of blocking probability, dropping probability, average serving rate, and average signaling overhead.

Original languageEnglish
Article number5677554
Pages (from-to)5-18
Number of pages14
JournalIEEE Transactions on Mobile Computing
Volume11
Issue number1
DOIs
StatePublished - 1 Jan 2012

Keywords

  • Admission control
  • And wireless networks.
  • Mobility management
  • Resource management
  • Statistics and stochastic process
  • WiMAX networks

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