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Vol. 133, Issue 10, October 2011, pp.95-107

 

Bullet

 

A Multi-hop Topology Control Based on Inter-node Range Measurement for Wireless Sensor Networks Node Localization

 

1 Ali Husein ALASIRY, 2 Shinji OHYAMA

1 Electronics Engineering Polytechnic Institute of Surabaya,

Jl. Raya ITS Sukolilo, Surabaya, 60111, Indonesia

Tel.: +62-31-594-7280

2 Department of Mechanical and Control Engineering,

Tokyo Institute of Technology, 2-12-1, O-okayama, Meguro-ku, Tokyo, Japan

Tel.: +81-3-5734-2325

E-mail: ali@eepis-its.edu, sohyama@k.ctrl.titech.ac.jp

 

 

Received: 25 August 2011   /Accepted: 25 October 2011   /Published: 31 October 2011

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Abstract: In centralized range-based localization techniques, sufficiency of inter-node range information received by the base station strongly affects node position estimation results. Successful data aggregation is influenced by link stability of each connection of routes, especially in a multi-hop topology model. In general, measuring the inter-node range is only performed for position determination purposes. This research introduces the use of inter-node range measurement information for link selection in a multi-hop route composition in order to increase the rate of data aggregation. Due to irregularity problems of wireless media, two areas of node communication have been considered. The regular communication area is the area in which other nodes are able to perform symmetrical communication to the node without failure. The irregular area is the area in which other nodes are seldom able to communicate. Due to its instability, some existing methods tried to avoid the irregular area completely. The proposed method, named Virtual Boundaries (VBs) prioritizes these areas. The regular communication area’s nodes have high priority to be selected as link vertices; however, when there is no link candidate inside this area, nodes within the irregular area will be selected with respect to their range to the parent node. This technique resulted in a more robust multi-hop topology that can reduce isolated node numbers and increase the percentage of data collected by the base station accordingly.

 

Keywords: Wireless sensor networks; Range-based localization; Multi-hop communication

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