Date Added: Aug 2012
In preceding existence, Wireless Sensor Networks (WSNs) have gained an amplified attention from the research community and extended its boundaries in commercial, industrial and medical domains. The tailback in WSN based application development is the inadequate energy source. As sensor nodes are generally battery-powered devices, the critical aspect is to lessen the energy consumption of nodes, so that the network lifetime can be extended over a reasonable time span. The energy of a node is consumed by sensor, processor and radio interface, of which the radio interface is the principal consumer of nodal energy. Thus reduction of data to be transmitted can effectively lessen the energy consumption, bandwidth requirement and network congestions.