期刊名称：International Journal of Computer Trends and Technology
电子版ISSN：2231-2803
出版年度：2014
卷号：7
期号：2
DOI：10.14445/22312803/IJCTT-V7P116
出版社：Seventh Sense Research Group
摘要：Wireless sensor Networks are very famous these days due to their coverage and enormous benefits. Clustering the sensor nodes efficiently and dynamically with least energy consumption is the current issue in front of researchers, so that lifetime of sensor nodes will be increased. Cooperation among Relay Nodes and Edge Nodes (ENs) along with restrained energy utilization depends upon some protocol such as LEACH for data transmission. In this paper, we propose a Cluster Chain Based Relay Nodes Assignment (CCBRNA) scheme to manage the energy constraints in WSN, which Assigns Relay Nodes (ClusterHeads) on the basis of energy and distances parameters but priority is always given to the energy value. The primary model of CCBRNA based on LEACH and PEGASIS protocols is redeveloped to enlarge the lifetime span of network nodes. This scheme is sliced into two main steps. In the first step ClusterHead is selected and then in second step data transmission starts using an internal chain of nodes according to the distances of nodes from Base Station. In data transmission step, data transportation between different clusters takes place and lastly data is sent to the end terminal moving via the nearest ClusterHead. Simulation in MATLAB verifies the enhanced lifetime of the nodes. We have used the distance as the key parameter while data transmission takes place. The scheme is efficient as when there are large number of nodes, chaining will take very less time and as well as energy to transmit the data to ClusterHead. We have further applied an external chaining among ClusterHeads of different clusters. With the applied limitations and suggested resources such as additional processor, it works well in relaying process.
关键词：Cluster-Head; Chaining within Clusters; Relay node Assignment; Lifetime; LEACH; PEGASIS.
