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GU-HSIN LAI+, CHEN-SEN OUYANG* AND CHIA-MEI CHEN+
+Department of Information Management
National Sun Yat-sen University
Kaohsiung, 804 Taiwan
*Department of Information Engineering
I-Shou University
Kaohsiung, 840 Taiwan
Wireless sensor networks consist of many tiny sensors with sensing and communication
ability. The applications of wireless sensor networks are widely used today in battlefield
guard, circumstance monitor, and traffic analysis. Sensor network often carries
on a mission-critical task. Thus, security in sensor network is vital. Wormhole attack
may threat the availability of networks by dropping data randomly or disturbing routing
path. In this paper, a group-based deployment is proposed to prevent wormhole attack.
Sensors are deployed by groups and are aware of their own group location where the
group of sensors will be located and no exact location is known in advance. Group location
will be exchanged among sensors during routing path establishment and a link between
two sensors will be built only when the distance of two sensor¡¦s group location is
close enough. The proposed approach to prevent wormhole is novel and efficient, using
only the group location information and no any special hardware is needed.
Received October 30, 2009; accepted June 24, 2010.
Communicated by Ren-Hung Hwang, Chung-Ming Huang, Cho-Li Wang, and Sheng-Tzong Cheng.