Location management of correlated mobile users in the UMTS

Author

Gau, Rung-Hung ; Lin, Chung-Wei

Author_Institution

Inst. of Commun. Eng., Nat. Sun Yat-Sen Univ., Kaohsiung, Taiwan

Volume

4

Issue

6

fYear

2005

Firstpage

641

Lastpage

651

Abstract

In this paper, we propose concurrently searching for correlated mobile users in mobile communications networks. Previous work either focuses on locating a single mobile user or assumes that the locations of mobile users are statistically independent. We first propose a mobility model in which the movements of mobile users are statistically correlated. Next, we use the theory of Markov chain to derive the joint probability density function of the locations of mobile users. In addition, we propose a novel approach to discover the correlations among the locations of mobile users without explicitly calculating the joint probability density function. Our simulation results indicate that exploring the correlations among the locations of mobile users could significantly reduce the average paging delay and increase the maximum stable throughput.

Keywords

3G mobile communication; Markov processes; mobility management (mobile radio); paging communication; statistical analysis; Markov chain; UMTS; correlated mobile user; joint probability density function; location management; mobile communications network; mobility management; paging; statistical correlation; 3G mobile communication; Base stations; Circuits; Delay; Ground penetrating radar; Intelligent networks; Mobile communication; Mobile radio mobility management; Probability density function; Routing; Index Terms- Mobility management; UMTS.; paging; statistical correlation;

fLanguage

English

Journal_Title

Mobile Computing, IEEE Transactions on

Publisher

ieee

ISSN

1536-1233

Type

jour

DOI

10.1109/TMC.2005.89

Filename

1516112