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- Title
An Inter-Cluster Cooperative Nodes Selection Scheme Based on Blind Channel Estimation.
- Authors
Xiaoqiang Zhong; Baiqing Zhou
- Abstract
An inter-cluster cooperative node selection scheme with low energy-cost is proposed for the energy --constrained wireless sensor networks. Pre-set an energy threshold first and determine a cooperative node set. Then estimate information of channels between inner-cluster cooperative nodes and cluster head nodes with a blind channel estimation algorithm that requires small amount data. The optimum inner-cluster nodes are selected as the cooperative nodes of the cluster head nodes by considering comprehensively channel states and residual energy. The blind channel estimation is then turn into the unconstrained optimization which is then resolved by quadratic programming iterative weighted method. Theoretical analysis, mathematical models, and simulation results show that the new algorithm can obtain channels information by mean of a few data.
- Subjects
BLIND channel identification (Telecommunications); ESTIMATION theory; WIRELESS sensor nodes; WIRELESS sensor networks; INFORMATION theory; WIRELESS cooperative communication; QUADRATIC programming
- Publication
International Review on Computers & Software, 2011, Vol 6, Issue 6, p960
- ISSN
1828-6003
- Publication type
Article