Home // ICNS 2012, The Eighth International Conference on Networking and Services // View article

Node Repositioning Method based on Topology Information in IEEE 802.16j Relay Networks

Authors:
Takafumi Shigefuji
Go Hasegawa
Yoshiaki Taniguchi
Hirotaka Nakano

Keywords: IEEE 802.16j, relay network, node repositioning, network performance improvement

Abstract:
IEEE 802.16j relay networks can provide wide- area wireless broadband service. In these networks, the loca- tions of relay nodes and the topology are important factors in achieving high performance. In particular, radio wave inter- ference must be considered when establishing node locations. However, nodes are generally deployed in limited areas and cannot be moved to arbitrary positions. In this paper, we propose a node repositioning method that works within these constraints to improve network performance and that utilizes only topology information. Since the computational cost is high for assessing all possible node positions, the proposed method limits the number of candidate nodes to be repositioned on the basis of topology information. We examine the effectiveness of the proposed method through simulation experiments and show that a performance improvement of up to 28% is realized and nearly optimal results are obtained, but at much lower computational cost than an exhaustive search.

Pages: 57 to 62

Copyright: Copyright (c) IARIA, 2012

Publication date: March 25, 2012

Published in: conference

ISSN: 2308-4006

ISBN: 978-1-61208-186-1

Location: St. Maarten, The Netherlands Antilles

Dates: from March 25, 2012 to March 30, 2012