Title :
Distributed source localization via projection onto the nearest local minimum
Author :
Shi, Qingjiang ; He, Chen
Author_Institution :
Dept. of Electron. Eng., Shanghai Jiao Tong Univ., Shanghai
fDate :
March 31 2008-April 4 2008
Abstract :
When addressing the energy-based source localization problem using wireless sensor networks, distributed localization method is necessary to reduce the energy and bandwidth consumption. In this paper, a novel distributed source localization method called projection onto the nearest local minimum (PONLM) is proposed, which can be carried out at each of active nodes with quite lightweight computation, in contrast to most existing centralized method. Simulation results show our method can yield much better performance than the previous methods.
Keywords :
signal processing; wireless sensor networks; PONLM; energy-based distributed source localization; projection onto the nearest local minimum; wireless sensor networks; Acoustic sensors; Bandwidth; Computational modeling; Distributed computing; Energy consumption; Helium; Maximum likelihood estimation; Position measurement; Power engineering and energy; Wireless sensor networks; Distributed method; Energy-based source localization; PONLM; Wireless sensor networks;
Conference_Titel :
Acoustics, Speech and Signal Processing, 2008. ICASSP 2008. IEEE International Conference on
Conference_Location :
Las Vegas, NV
Print_ISBN :
978-1-4244-1483-3
Electronic_ISBN :
1520-6149
DOI :
10.1109/ICASSP.2008.4518169