Distance-Based Location Management Utilizing Initial Position for Mobile Communication Networks

Abstract

This paper aims at improving the distance-based location management scheme for mobile communication networks. In location management, a mobile terminal (MT) is tracked based on its location-update area (LA). The improvement is brought about by joint optimization of LA center and LA size. For LA center optimization (LCO), we determine the optimal center position of the LA given the initial position of the MT upon each location update. The investigation of optimal LA center has eluded research to date. Based on the popular continuous-time random walk (CTRW) mobility model, we propose an analytical framework that uses a diffusion equation to determine the optimal LA center that minimizes the total cost of location management, consisting of the location update cost and terminal paging cost. This framework allows us to easily model the nonMarkovian movement of the MT and evaluate the impact of various measurable physical parameters (such as length of road section, angle between road sections, road section crossing time) and LA center. In particular, we show that proper LA center can significantly reduce the total cost. For example, for the circular LA and low Poisson call-arrival rate, optimizing the LA center alone has the potential of reducing the cost by up to 37%. Joint optimization of the LA center and terminal paging scheme can reduce the cost even further. Simulations results match the theoretical analysis to a gap within 3%, indicating that our theoretical model is very accurate.

Tracking areas planning based on spectral clustering in small cell networks

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Movement-Aware Relay Selection for Delay-Tolerant Information Dissemination in Wildlife Tracking and Monitoring Applications

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Analyzing Zone-Based Registration under 2-Step Paging in Mobile Communication Network

“…To date, many location registration strategies have been proposed to reduce mobility management costs in mobile communication networks; representative methods include movement-based registration [2][3][4][5], distance-based registration [5][6][7][8], and zone-based registration (ZBR) [9][10][11][12][13]. In addition, even though there have been many studies on tracking area list-based registration for 4G/5G in recent years [14][15][16][17][18], this method is not a completely new one, but rather a flexible strategy that can be implemented in the same When the UE moves to a new zone, it registers the zone to the network database and stores it in the zone list in the UE.…”