Title :
Energy assignment to prolong the lifetime in heterogeneous wireless sensor network
Author :
Ren, Li-Jie ; Guo, Zhong-Wen ; Ma, Ren-Zhong
Author_Institution :
Dept. of Comput. Sci., Ocean Univ. of China, Qingdao
Abstract :
This paper focuses on prolonging the sensor network lifetime by assigning the sensor nodes with initial energy properly in the heterogeneous wireless sensor network. The initial energy assignment (IEA) strategy is proposed either the total initial energy is limited or unlimited. The location and energy level of sensors are given to optimize the load balance and prolong the network lifetime. When the total available energy of all the nodes is limited, the network life is 92% longer using the IEA strategy than using the uniform initial energy assignment strategy; when the total energy of all nodes is unlimited, the network lifetime on the IEA strategy will increase about 12 times longer than on the uniform energy allocation. The numerical approximation for the IEA strategy is presented in this paper, and the nodes density and the radius of deployment are also discussed to maximize the network lifetime.
Keywords :
resource allocation; wireless sensor networks; heterogeneous wireless sensor network; initial energy assignment; load balance; sensor network lifetime; Computer science; Cybernetics; Energy consumption; Intelligent networks; Machine learning; Network topology; Power system modeling; Relays; Telecommunication traffic; Wireless sensor networks; Energy assignment; Energy balance; Heterogeneous network; Network lifetime; Nodes placement;
Conference_Titel :
Machine Learning and Cybernetics, 2008 International Conference on
Conference_Location :
Kunming
Print_ISBN :
978-1-4244-2095-7
Electronic_ISBN :
978-1-4244-2096-4
DOI :
10.1109/ICMLC.2008.4621112
