DISTANCE BASED MODIFIED LEACH ROUTING PROTOCOL

Abstract

A Wireless sensor network (WSNs) is defined as a self-configured and infrastructureless wireless networks which
monitors physical or environmental conditions, such as temperature, sound, vibration, pressure, motion or pollutants and
thus cooperatively pass their data through the network to a main location or sink where the data can be observed and
analyzed. A sink or base station acts like an interface or link between users and the network. One can retrieve required
information from the network by injecting queries and gathering results from the sink. There are various routing techniques
for providing path to the traffic in a network. Routing techniques are required for sending the sensed data between the sensor
nodes and base station. The routing protocol focused in this paper is modified LEACH routing protocol that leads to
increased network lifetime and decreased energy consumption. Furthermore, the same modified LEACH protocol is
enhanced by using the effective distance parameter. Simulation results reveals that the proposed algorithm outperforms the
modified LEACH protocol in prolonging network lifetime.