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Sensors 2009, 9(3), 1433-1453; doi:10.3390/s90301433
Article

Sink-oriented Dynamic Location Service Protocol for Mobile Sinks with an Energy Efficient Grid-Based Approach

1
, 2
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 and 1,*
Received: 26 November 2008; in revised form: 25 February 2009 / Accepted: 26 February 2009 / Published: 3 March 2009
(This article belongs to the Special Issue Wireless Sensor Technologies and Applications)
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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 particular, a stationary dissemination path may no longer be effective in mobile sink applications, due to sink mobility. In this paper, we propose a Sink-oriented Dynamic Location Service (SDLS) approach to handle sink mobility. In SDLS, we propose an Eight-Direction Anchor (EDA) system that acts as a location service server. EDA prevents intensive energy consumption at the border sensor nodes and thus provides energy balancing to all the sensor nodes. Then we propose a Location-based Shortest Relay (LSR) that efficiently forwards (or relays) data from a source node to a sink with minimal delay path. Our results demonstrate that SDLS not only provides an efficient and scalable location service, but also reduces the average data communication overhead in scenarios with multiple and moving sinks and sources.
Keywords: Wireless Sensor Networks; Data Dissemination Protocol; Location-based Routing; Mobile Sink; Energy Efficiency; Lifetime Wireless Sensor Networks; Data Dissemination Protocol; Location-based Routing; Mobile Sink; Energy Efficiency; Lifetime
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.

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MDPI and ACS Style

Jeon, H.; Park, K.; Hwang, D.-J.; Choo, H. Sink-oriented Dynamic Location Service Protocol for Mobile Sinks with an Energy Efficient Grid-Based Approach. Sensors 2009, 9, 1433-1453.

AMA Style

Jeon H, Park K, Hwang D-J, Choo H. Sink-oriented Dynamic Location Service Protocol for Mobile Sinks with an Energy Efficient Grid-Based Approach. Sensors. 2009; 9(3):1433-1453.

Chicago/Turabian Style

Jeon, Hyeonjae; Park, Kwangjin; Hwang, Dae-Joon; Choo, Hyunseung. 2009. "Sink-oriented Dynamic Location Service Protocol for Mobile Sinks with an Energy Efficient Grid-Based Approach." Sensors 9, no. 3: 1433-1453.



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