MMR-LEACH: Multi-tier Multi-hop Routing in LEACH Protocol

摘要

Wireless Sensor Network (WSN) is an advance technology which consist a set of sensor nodes. These sensors are responsible for sensing and collecting data form environment in which they deployed. This information is further transmitted to the base station (BS) via routing protocol. Energy dissipation is major concern while data transmission is done. Various routing protocols are used to reduce energy consumption in WSN. Hierarchical routing protocols are considered to reduce energy consumption. In this paper, we proposed MMR-LEACH protocol. MMR-LEACH protocol divides WSN into various numbers of cluster layers (i.e., multi-tier) with introducing another node as a Vice Cluster Head (VCH) rather than Main Cluster Head (MCH). In MMR-LEACH, after the selection of MCH, it is responsible to select VCH based on residual energy. In this protocol, MCH is also responsible for collecting, aggregating and transmitting data from sensor nodes to BS and VCH is act as a mediator between lower layer MCH and BS for the transmission purpose. These all results into increase the lifetime of WSN.