An Enhanced Direction-based Location Update Scheme for PCS networks

Authors

Jun Zheng, University of Nevada, Las VegasFollow
Emma Regentova, University of Nevada, Las VegasFollow

Document Type

Conference Proceeding

Publication Date

2004

Publication Title

2004 IEEE 60th Vehicular Technology Conference, VTC2004-Fall: Wireless Technologies for Global Security

Publisher

IEEE

Volume

5

First page number:

3555

Last page number:

3559

Abstract

Future personal communication service (PCS) networks consider smaller cells to accommodate continuously growing population of subscribers. Frequently performed location updates caused by such an infrastructure incur extensive signaling and consequently higher cost. Thus, new strategies are demanded to locate mobile users more efficiently. Among several proposals, the direction-based location update (DBLU) scheme uses a dynamic strategy such that the mobile users update their locations only when a change of direction occurs. To locate users, the system pages cells along the direction of initial move. The scheme works well when the change of direction is infrequent and the ratio of location update cost to paging cost is low. Otherwise, the location update, and consequently the overall cost increase significantly. To attack this problem, we propose an enhanced direction-based location update (EDBLU) scheme, which takes into account both the moving distance and the moving direction. We analyze the performance of the EDBLU under different mobility patterns and call-to-mobility ratios based on a 2D Markov walk model. The numerical results demonstrate that the proposed scheme augments the performance reported by the distance-based and the direction-based methods.

Keywords

Cell phone systems; Personal communication service systems; Telecommunication—Message processing; Wireless communication systems

Disciplines

Controls and Control Theory | Digital Circuits | Digital Communications and Networking | Dynamics and Dynamical Systems | Electrical and Computer Engineering | Signal Processing | Systems and Communications

Language

English

Permissions

Use Find in Your Library, contact the author, or interlibrary loan to garner a copy of the item. Publisher policy does not allow archiving the final published version. If a post-print (author's peer-reviewed manuscript) is allowed and available, or publisher policy changes, the item will be deposited.

Repository Citation

Zheng, J., Regentova, E. (2004). An Enhanced Direction-based Location Update Scheme for PCS networks. 2004 IEEE 60th Vehicular Technology Conference, VTC2004-Fall: Wireless Technologies for Global Security, 5 3555-3559. IEEE.