International Conference on Advances in Electrical & Electronics Engineering, ICAEEE-2011           Kshitij Shinghal 1 , Arti Noor 2 , Neelam Srivastava 3 , Raghuvir Singh 4 1 Department of E&C Engg., Moradabad Institute of Technology, Moradabad, INDIA. kshinghal@gmail.com 2 Department of M. Tech. VLSI Design Group, C-DAC, Noida, INDIA artinoor@cdacnoida.in 3 Department of E&C Engg., Institute of Engineering & Technology, Lucknow, INDIA. neelamsrivastava2001@yahoo.com 4 Academic Advisor, Shobhit University, Merrut, INDIA. r.singh@nicesociety.org ABSTRACT Energy consumption is one of the most crucial design issues in wireless sensor networks since prolonging the network lifetime depends on the efficient management of sensing node energy resource. In this paper, an energy aware transceiver for – next generation wireless sensor network node is proposed, which is not only energy aware but also reduces the power consumption significantly in a wireless sensor network node. In the proposed transceiver, to achieve energy conservation, sensing nodes employing the proposed energy aware transceiver sleeps to reduce power consumption and minimize idle listening. Unlike common wireless sensor network nodes with a normal RF communication section, the proposed energy aware transceiver for WSN node has a wake up management system for energy efficiency and fulfilment of the low power requirement of WSN applications. The proposed energy aware transceiver has been modelled and simulated using Ansoft Simplorer Software for performance evaluation. Simulation results of the WSN model employing the new energy aware transceiver are presented including comparisons with those of a WSN counterpart employing conventional transceiver. By using the wake up scheme and ASK modulation with no Transmission for zero, the power consumption was reduced. As a consequence WSN node employing the proposed energy aware transceiver has 4.325 times lower energy consumption ratio then when compared with the WSN model employing conventional transceiver. Keywords: Wireless Sensor Network, Energy Efficiency, Transceiver 1. INTRODUCTION The present wireless sensor network scenario is characterized by networks made of large number of nodes spaced by some meters. The development of new wireless sensor network applications such as biomedical sensing or wearable-paintable computers requires hundreds of ultra low power nodes communicating over small distances (1- 5 cm) at low-to-moderate bit rates [1],[2].WSN applications have quite different characteristics and requirements from traditional wireless applications. A Sensing Node (SN) in a WSN is expected to be battery equipped, and to change or recharge the power supply is usually very difficult. Therefore energy conservation, which is essential for prolonging the lifetime of the SN and thus of the network, is a more crucial issue in WSNs than such other performance metrics utilized for traditional network systems as throughput and delay. Most of the ongoing researches about WSNs aim at