异构无线网络中垂直切换算法的评测与改进

Translated title of the contribution: Evaluation and improvement of vertical handoff algorithms in heterogeneous wireless networks

Min Liu*, Zhong Cheng Li, Xiao Bing Guo, De Kui Zhang

*Corresponding author for this work

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Vertical handoff is the basic requirement for convergence of different access technologies and has received tremendous attention from the academia and industry. In recent years, many research works have focused on vertical handoff decision algorithms. However, the evaluation scenarios in different papers are quite different. Thus it is difficult to compare different algorithms in a fair way. This paper analyzes the general motion models of mobile nodes and identifies a set of novel performance evaluation models. Equipped with the models, this paper analyzes the performance of two types of decision algorithms: Hysteresis based algorithm and dwelling-timer based algorithm. Based on the above, a novel vertical handoff decision algorithm, self-adaptive vertical handoff algorithm (SAVA) is presented. Simulations show that SAVA can achieve better performance compared with the conventional methods.

Original languageChinese
Pages (from-to)1652-1659
Number of pages8
JournalRuan Jian Xue Bao/Journal of Software
Volume18
Issue number7
DOIs
Publication statusPublished - Jul 2007
Externally publishedYes

Keywords

  • Heterogeneous wireless network
  • Horizontal handoff
  • Performance evaluation
  • Vertical handoff

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