SECTORIAL STABLE ELECTION PROTOCOL FOR WIRELESS SENSOR NETWORK

Abstract

Wireless sensor networks (WSNs) are gaining popularity in applications like, defence, health monitoring and in agriculture etc. An efficiently design protocol can provide higher throughput, better stability period and longer network lifetime. In the similar context various protocols are proposed where much emphasis is given on minimization of energy used for per transmitted bit. Most of the designed protocols are based on two stages heterogeneous network consisting of two kinds of nodes; normal and advanced. The initial energy of the advanced nodes is higher in comparison to normal nodes. Generally, nodes form clusters and cluster head is utilized for the purpose of transferring packets to base station. Recently, stable election protocol (SEP) was proposed. In the case of SEP, both normal as well as advance nodes contain weighted probability to transform into cluster head. Advance nodes have more chances to be turned out as cluster head in comparison to normal nodes. To further enhance the performance of the protocol, Zonal-SEP is proposed, where field is divided into zones. In this paper, it is shown that, the concept of zones can be further extended into sectors and careful selection of sectors can further improves the performance with same number of advance nodes.

Keywords

• Normal nodes advanced nodes
• WSN
• Dead nodes