Date Added: Mar 2012
This paper is to address the problem of energy conservation in wireless sensor networks. Since, wireless sensor networks typically consist of tiny sensors with a scarce energy resource, energy conservation is a critical issue to be addressed. This paper addresses the energy conservation issue by tackling two fundamental problems: network topology construction and data delivery. First, they addressed many real life applications using energy harvesting system power are now practical. Wireless sensor network systems such as ZigBee systems often benefit from energy harvesting power sources. For example, when a wireless node is deployed at a remote site where a wall plug or a battery is either unreliable or unavailable, energy harvesting can augment or supply power.