Performance analysis of Stable Election Protocol and its extensions in WSN

Wireless Sensor Networks (WSNs) is one of trending technology in wireless communication. Energy consumption is a major issue in WSN. Therefore most of the routing protocols are focused on energy efficiency. Clustering mechanism is one of the popular WSNs routing technique. In this paper we'll discuss about Stable Election Protocol (SEP), a two level heterogeneous protocol and its two extensions, Z-SEP and TSEP; which uses clustering technique for data transmission. In Z-SEP some nodes transmits data directly to base station and some use clustering technique. TSEP is a three-level heterogeneous reactive protocol, where cluster members transmit data to their cluster head only when sensed data exceeds some threshold. We then compare their performance based on network lifetime, throughput and stability period.