Energy Efficient Packet Data Service in Wireless Sensor Network in Presence of Rayleigh Fading

Authors:
Arnab Nandi;Sumit Kundu
Affiliations:
National Institute of Technology Durgapur, India;National Institute of Technology Durgapur, India
Venue:
International Journal of Grid and High Performance Computing
Year:
2011

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Abstract

Energy level performances of three packet delivery schemes in Wireless Sensor Networks WSN are evaluated in presence of Rayleigh fading. 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, and channel fading. Energy efficiencies of different retransmission schemes are also evaluated. Further, an optimal packet length based on energy efficiency is derived. Impact of optimal packet size on average number of retransmission and total energy expenditure is analyzed for each delivery scheme.