Remaining Energy Cluster Head Selection and Leach Analysis of Smart Wireless Sensor Network

Abstract— In emergent Smart Wireless Sensor topologies, transmission range between different nodes is one of the major concerns ensuing clustering to be solution which diminish the power depletion of network. Grouping of sensor nodes is done for, not transferring information with greater power levels to the destination increasing network life time. Obligation of Cluster Heads is in resending information to Base Station and aggregation of entire set of data packet, resulting in solving problem of nearing nodes to Base Station which devours large amount of power for being active for large-some of time to retransmit data to end sink node. In this paper, proposal of the Remaining energy cluster head selection algorithm grounded on ratio of residual energy of every individual node to its original energy along with minimum distance between cluster head and sink node. In order not to decode collided packets at head node, SINR value calculated for every node is compared with a threshold ensuing redeemable of wastage of power in unnecessary decoding. The performance of proposed protocol is compared with one of the popular routing protocol LEACH, in terms of Packet delivery ratio, Energy depletion and Packet drop in reference with time. Network simulator NS2 is used for simulation and plotting.

Keywords—WSNs, LEACH, RECH, remaining energy, Routing protocols, NS2

INTRODUCTION

Most WSNs uses TDMA MAC protocol as channel access scheme in which every associated member of a cluster has its own time slot for communicating with the head node [6]. TDMA centered routing protocols are great solution in minimizing idle heeding, eavesdrop elimination and collision eradication and has certain disadvantages like scalability and synchronization impediments [1].

Hierarchical routing protocols are based on cluster formation in which cluster head is accountable for data aggregation and data transmission to base station referring it to be unique most power efficient schemes for wireless sensor networks. In total, hierarchical protocol is beneficial compared to other protocols, like power consumption minimization of inter and intra cluster communication, scalability, improvement in network lifetime, declining in delay of transmission of packets, heterogeneity of network adaptability.
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