Adaptive location updates for mobile sinks in wireless sensor networks |
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| Authors: | Guojun Wang Tian Wang Weijia Jia Minyi Guo Jie Li |
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| Affiliation: | (1) School of Information Science and Engineering, Central South University, Changsha, 410083, China;(2) Department of Computer Science, City University of Hong Kong, Kowloon Tong, Kowloon, Hong Kong;(3) Department of Computer Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200030, China;(4) Graduate School of Systems and Information Engineering, University of Tsukuba, Tsukuba Science City Ibaraki 305-8573, Japan |
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| Abstract: | Mobile sinks can be used to balance energy consumption for sensor nodes in Wireless Sensor Networks (WSNs). Mobile sinks are
required to inform sensor nodes about their new location information whenever necessary. However, frequent location updates
from mobile sinks can lead to both rapid energy consumption of sensor nodes and increased collisions in wireless transmissions.
We propose a new solution with adaptive location updates for mobile sinks to resolve this problem. When a sink moves, it only
needs to broadcast its location information within a local area other than among the entire network. Both theoretical analysis
and simulation studies show that this solution consumes less energy in each sensor node and also decreases collisions in wireless
transmissions, which can be used in large-scale WSNs.
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| Keywords: | Wireless sensor networks Mobile sinks Routing protocol Location update |
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