sink-oriented dynamic location service protocol for mobile sinks with an energy efficient grid-based approachsink-oriented动态位置服务协议为移动下沉与能源高效的基于网格的方法.pdf

Sensors 2009, 9, 1433-1453; doi:10.3390/ OPEN ACCESS sensors ISSN 1424-8220 /journal/sensors Article Sink-oriented Dynamic Location Service Protocol for Mobile Sinks with an Energy Efficient Grid-Based Approach Hyeonjae Jeon 1, Kwangjin Park 2, Dae-Joon Hwang 1 and Hyunseung Choo 1,* 1 School of Information and Communication Engineering, Sungkyunkwan University, 300 Cheoncheon-dong, Suwon Gyeonggi-do 440-746, South Korea; E-Mails: jeonnow@; kjpark@wonkwang.ac.kr; djhwang@ 2 Division of Electrical Electronic and Information Engineering, Wonkwang University, 344-2 Shinyong-dong, Iksan Chonbuk 570-749, South Korea * Author to whom correspondence should be addressed; E-Mail: choo@; Tel.: +82-31-290- 7145; Fax: +82-31-299-4134 Received: 26 November 2008; in revised form: 25 February 2009 / Accepted:26 February 2009 / Published: 3 March 2009 Abstract: Sensor nodes transmit the sensed information to the sink through wireless sensor networks (WSNs). They have limited power, computational capacities and memory. Portable wireless devices are increasing in popularity. Mechanisms that allow information to be efficiently obtained through mobile WSNs are of significant interest. However, a mobile sink introduces many challenges to data dissemination in large WSNs. For example, it is important to efficiently identify the locations of mobile sinks and disseminate information from multi-source nodes to the multi-mobile sinks. In part