Analysis of Energy Efficient Coverage and Prolonging Lifetime by Comparing Homogenous and Heterogeneous Wireless Sensor Networks

Wireless sensor networks are one of the attractive and emerging research domains, with tremendous applications in various aspects like health care monitoring, area monitoring, environmental/ earth real time sensing and monitoring of industries, etc. A WSN are capable of sensing and detecting different minute changes in events by means miniature sensor nodes dispersed over that network area. Each sensor node has the sensor for detection, controller, storage memory, A/D converter, battery and transceiver. Sensing, processing and communication are three main operation of a sensor node. Here, it is an important to collect data periodically from an area of interest, in case of time-sensitive applications. Then this sensed data must be collected and transmitted to a base station and the base station further process the data to meet the end-user queries. As the sensors of sensor nodes are operated on battery which is having a limited power, it is a huge challenge to design an energy efficient routing protocol for minimization of energy consumption and offering a long network lifetime with high-energy efficiency. Present work concerned with comparing the homogenous and heterogeneous systems for energy efficiency and long span of network lifetime.