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Journal of Computer Systems, Networks, and Communications
Volume 2010, Article ID 916569, 15 pages
http://dx.doi.org/10.1155/2010/916569
Research Article

Paging and Location Management in IEEE 802.16j Multihop Relay Network

Department of Electrical Engineering, National Taiwan University, Taipei 106, Taiwan

Received 29 September 2009; Accepted 15 December 2009

Academic Editor: Rashid Saeed

Copyright © 2010 Kuan-Po Lin and Hung-Yu Wei. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

IEEE 802.16j is an emerging wireless broadband networking standard that integrates infrastructure base stations with multihop relay technology. Based on the idle mode operation in IEEE 802.16j, we propose a novel location management and paging scheme. It integrates the paging area-based and the timer-based location update mechanism. In paging area-based scheme, an idle mode mobile station updates when it moves to a new paging area. In timer-based scheme, an idle mode MS updates when the location update timer expires. In this work, we formulate the mathematical model to evaluate the performance of the proposed paging scheme. A new random walk mobility model that is suitable for modeling in multihop relay network is created. Optimization of location update timer is also investigated.