Authors: Cheng-Hung Liu, Kuo-Feng Ssu, Wei-Tong Wang
Addresses: Department of SoC Software Design, TrendChip Technologies Corporation, HsinChu, Taiwan. ' Department of Electrical Engineering, National Cheng Kung University, Tainan, Taiwan. ' Department of Electrical Engineering, National Cheng Kung University, Tainan, Taiwan
Abstract: Previous research indicated that uniform deployment was not the most efficient way for saving energy in wireless sensor networks (WSNs). The location nearer a sink should have more sensors deployed. This paper describes a moving algorithm for achieving the non-uniform deployment (MAND). With MAND, mobile sensors can move to appropriate locations to prolong the system lifetime. With two refinements on MAND (called EMAND), not only the coverage of the network is maintained, but the lifetime can be improved enormously. Simulation results show that EMAND performs well in the environment with more sensing events.
Keywords: mobile sensor networks; non-uniform deployment; moving algorithm; wireless sensor networks; WSNs; wireless networks; mobile networks; mobile sensors; simulation; network lifetime; network coverage; energy efficiency; sensor deployment.
International Journal of Autonomous and Adaptive Communications Systems, 2011 Vol.4 No.3, pp.271 - 290
Available online: 28 Jun 2011 *Full-text access for editors Access for subscribers Purchase this article Comment on this article