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Vol. 118, Issue 7, July 2010, pp.73-86

 

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Energy Level Performance of Packet Delivery Schemes in Wireless Sensor Networks in Shadowed Channel

 

Arnab Nandi and Sumit Kundu

Department of Electronics and Communication Engineering

National Institute of Technology, Durgapur

Durgapur- 713209, India

E-mail: nandi_arnab@yahoo.co.in and sumit.kundu@ece.nitdgp.ac.in

 

 

Received: 26 June 2010   /Accepted: 24 July 2010   /Published: 31 July 2010

 

Abstract: This paper evaluates energy level performance of three packet delivery schemes in a Wireless Sensor Networks (WSN) in shadowed channel. Three different information delivery mechanisms are investigated using regenerative relays with or without error correction capability. Energy consumption for successful delivery of a data packet for each mechanism is evaluated and compared under several conditions of node density, bit rate, transmit power etc. Energy efficiency of different retransmission schemes is evaluated. Further an optimal packet length based on energy efficiency is derived. Impact of different level of severity of shadowing on energy consumption is also investigated. Further impact of fixed and optimal packet size on energy consumption is analyzed.

 

Keywords: Wireless sensor networks, BER; Shadowing, ARQ, Optimal packet size.

 

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