Studies on the energy efficient techniques for wireless sensor networks

Abstract

The rapid advancement of radio technologies in the 70’s stimulated the development of mobile communication systems that would meet the needs of young professionals on the move. Hundreds of millions of people exchange information every day using laptops, Personal Digital Assistant (PDA), pagers, cellular phones and other wireless communication devices. At present, wireless mobile networks and devices are becoming increasingly popular than ever before. Users demand for the access to information and communication anywhere and anytime. To afford seamless connectivity it is necessary that wireless devices communicate among themselves without routers, base stations or service providers. This has led to the progression of adhoc networks (infrastructureless networks). Although adhoc networks were used to setup communication for specialised, customised and extemporaneous applications during large scale natural calamities or military operations, the nodes in the network are not engrossed to observe the physical happening.