Abstract
Clustering algorithms can balance the power consumption of energy constraint wireless sensor networks. This paper proposes a new clustering protocol called Mean Territorial Energy Based Clustering Protocol (MTEP) for randomly deployed wireless sensor networks. In MTEP, cluster heads are selected according to residual energy and location information of a node in current round as well as mean territorial energy and total base station distance of node’s corresponding cluster territory in previous round. Energy consumption in conventional protocols becomes unbalanced because of clusters having different lengths. Proposed MTEP protocol addresses this problem by setting thresholds on cluster length and node to cluster head distance for producing equal length clusters. Simulation results show that MTEP protocol extends network lifetime and stability with reduction in energy dissipation compared to other clustering protocols such as LEACH and REAC.
Highlights
An infrastructure required for sensor consisting of sensing, computation, communication and power unit is provided by wireless sensor networks [1]
Simulation results show that Mean Territorial Energy Based Clustering Protocol (MTEP) protocol extends network lifetime and stability with reduction in energy dissipation compared to other clustering protocols such as Low Energy Adaptive Clustering Hierarchy (LEACH) and REAC
Hybrid Energy Efficient Distributed clustering (HEED) strongly decreases energy dissipation compared with LEACH, large amount of energy is dissipated by head node
Summary
An infrastructure required for sensor consisting of sensing, computation, communication and power unit is provided by wireless sensor networks [1]. In Regional Energy Aware Clustering with Isolated Nodes (REAC-IN) [6], node’s current energy and regional average energy are considered to determine cluster head selection threshold for current round The analysis of these conventional protocols is based on assumption of equal sized clusters. Large amount of data has to be transmitted by heads of cluster having less number of nodes resulting in high energy dissipation [7] For solving this problem, there is requirement of clustering protocol which offers equal sized clusters for balancing energy consumption of entire network. A new protocol is proposed called Mean Territorial Energy Based Clustering Protocol (MTEP) for randomly deployed wireless sensor networks. MTEP determines cluster head selection threshold by considering residual energy and position of a node in current round and mean territorial energy and total base station distance within a node’s particular cluster territory in previous round.
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