Telecommunications: Protocols and Design
Telecommunications: Protocols and Design
Computation of Minimal Uniform Transmission Power in Ad Hoc Wireless Networks
ICDCSW '03 Proceedings of the 23rd International Conference on Distributed Computing Systems
Wireless Communications
Optimal Transmit Power in Wireless Sensor Networks
IEEE Transactions on Mobile Computing
The impact of fading and shadowing on the network performance of wireless sensor networks
International Journal of Sensor Networks
Ad Hoc Networking
Joint scheduling and power control for wireless ad hoc networks
IEEE Transactions on Wireless Communications
Rayleigh fading channels in mobile digital communication systems .I. Characterization
IEEE Communications Magazine
Minimum energy mobile wireless networks
IEEE Journal on Selected Areas in Communications
Studying the stochastic capturing of moving intruders by mobile sensors
Computers & Mathematics with Applications
Error analysis of range-based localisation algorithms in wireless sensor networks
International Journal of Sensor Networks
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In this paper, an optimum packet based transmission scheme for WSN (Wireless Sensor Network) where packet size is varied depending on the node density and channel condition is discussed. A WSN based on a square grid topology is investigated. This optimum size packet yields highest energy efficiency for a particular network condition. Optimum packet length is evaluated under several network conditions in presence of shadowing. Impact of severity of shadowing on optimal packet size is also investigated. Energy expenditure for optimum packet based scheme is compared with that of an arbitrary fixed packet size based transmission. Further impact of severity of fading on energy consumption is also studied. An infinite ARQ (Automatic Repeat reQuest) scheme between adjacent nodes has been considered to successfully deliver a file. Optimal transmit power is also derived for the above network. Optimal transmit power is the minimum transmit power used by all nodes to guarantee network connectivity with a prefixed BER (Bit Error Rate) threshold. Further impacts of lognormal shadowing on optimal transmit power, route BER and energy efficiency are studied for such WSN.