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Detour Scheme for Improving the Energy Efficiency and Fairness in Wireless Sensor Networks
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- Authors
- Hyun Woo Oh, Hea-Ryong Lee, Kwang-Roh Park, Sang Ha Kim
- Issue Date
- 2008-09
- Citation
- International Conference on Ubiquitous Computing (UbiComp) 2008, pp.1-2
- Language
- English
- Type
- Conference Paper
- Abstract
- Wireless Sensor Network (WSN) is comprised of sensors which are not recharged. Sensors consume their energy for transmitting sensing data and relaying it. The number of sensors run out of energy increases as the time goes by. A 'void' and 'hole' are the main cause of shortening the lifetime of wireless sensor networks. In this paper, we propose a novel detour scheme, which improves the energy efficiency and fairness in wireless sensor networks with a 'hole'. The proposed scheme selects a detour anchor point based on the distance between a source and a sensor node which detects a hole. If the distance is short, the anchor point uses a big detour angle and lengthens the distance from itself to the sensor node. Meanwhile, if the distance is long, it uses a small angle and shortens the distance from itself to the sensor node. The proposed detour scheme can solve the problem of a hole being enlarged. Moreover, it can improve the energy efficiency since it balances traffic load by selecting a proper anchor. The transmission delay fairness is provided since the proposed scheme uses a different weight according to the distance from a source when it selects a detour anchor point.
- KSP Keywords
- Energy efficiency, Sensing data, Sensor node, Small angle, Traffic Load, anchor point, different weight, transmission delay, wireless sensor network (wsn)