Prolonging the network lifetime of heterogeneous WSNS using MECRSEP

摘要

Wireless Sensor Networks (WSNs) contain a large number of sensor nodes that are equipped to handle complex functionalities, the network processing may require the sensors to use the constrained energy level to enhance the network lifetime. Many protocols have been proposed for achieving energy efficiency in heterogeneous structure of the network. In this dissertation, the performance of SEP, ECRSEP and ESEP have been analyzed for different WSNs scenarios. The outcomes of the same have been then analyzed for stability, network lifetime and throughput. The survey done on these protocols has shown that the SEP, ESEP and ECRSEP continues to punish advance and intermediate nodes and have also neglected the use of thresholds i.e. hard and soft thresholds to decrease the energy consumption. The neighbours of sensor nodes going to become CHs have also been neglected in the existing work. This dissertation has proposed two modifications where radius based grouping is used before CH selection to decrease the computation time. The new algorithm is the modification of ECRSEP and hence, is named MECRSEP (Modified ECRSEP). Due to non availability of actual sensor environment, in this dissertation simulation environment has been designed and implemented in the MATLAB tool.