一种方向性预测的位置管理算法

doi:10.3969/j.issn.1001-2400.2015.03.015

J4 ›› 2015, Vol. 42 ›› Issue (3): 83-89.doi: 10.3969/j.issn.1001-2400.2015.03.015

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Algorithm improvement of directional location management

CHEN Jie1,2;XI Wen2;MO Wei1

(1. School of Mechano-electronic Engineering, Xidian Univ., Xi'an 710071, China;
2. Changjiang Computer Group Corporation, Shanghai 200001, China)

Received:2014-07-11 Online:2015-06-20 Published:2015-07-27
Contact: CHEN Jie E-mail:rdcchji@sina.com

Abstract

Abstract:

In order to accurately calculate the cost of location management for the wireless cellular network, this paper puts forwards the predictive directional Markov chain as a mobility model based on the two-dimensional hexagon cellular structures. According to the location update model based on the two-steps paging strategy established between two consecutive arrival calls to get the optimal threshold of movement-based location management and the probability distribution of crossing the cell boundary K times on the condition that the incoming calls form a Poisson process and the MT's cell residence time has exponential probability distribution. Then with these given probability distribution we give the optimal two-steps paging strategy. Finally, numerical results show that this strategy outperforms some well-known basic paging schemes.

Key words: location management, location update, two-step paging, cost analysis

CHEN Jie;XI Wen;MO Wei. Algorithm improvement of directional location management[J].J4, 2015, 42(3): 83-89.

References

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Algorithm improvement of directional location management

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