AN ENERGY EFFICIENT ROUTING ALGORITHM FOR LINEAR TOPOLOGY WIRELESS SENSOR NETWORK

AUTHOR: NNEBE, SCHOLASTICA UKAMAKA

DEPARTMENT:ELECTRONICS AND COMPUTER ENGINEERING

AFFILIATION: NNAMDI AZIKIWE UNIVERSITY, AWKA

 This work proposes an energy efficient routing algorithm for linear topology WSN that can be used in long distance Infrastructure monitoring. In this work an experimental testbed of wireless sensor network using four TelosB sensor nodes was developed and the radio environment under study characterized. The link quality of the environment was estimated using both hardware and software link quality estimators. The Transmission, Forwarding and Reception Energies of the developed propagation model were found using the first order radio model. These were compared to the free space and multipath models. The pathloss models of the two test environments developed were tested and the goodness of fit (R2) of the model was found to be 0.83 and 0.86 for the outdoor and indoor respectively. Models were also developed for the hardware and software link quality estimators of the two testbeds and the R2 ranged from 0.67 to 0.86. Models were equally developed for the transmission and the forwarding energies of the two testbeds and the R2 was found to be 0.93, 0.96 and 0.81, 0.806 for the outdoor and the indoor, respectively. The rate of the depreciation of the battery was equally determined with respect to time. An energy efficient routing algorithm for linear long distance infrastructure monitoring was developed and evaluated using Opnet modeller, Castalia 3.2 and Proteus version 7.6. The developed algorithm (Linear WSN Routing Algorithm) was compared with Collection tree Algorithm (CTA) and Low Energy Adaptive Clustering Hierarchy and analysis were done. The analysis shows that the Linear WSN Routing Algorithm results in longer Network Life Time of about 1.8 times that of LEACH and 1.25 times that of CTA. Also, better Received Signal Strength Threshold of about 1.5 times that of CTA and 4 times that of LEACH was observed. However, lower Throughput of about 0.67 that of LEACH and 0.5 times that of CTA, higher Latency of about 1.5 times that of LEACH and 0.8 times that of CTA was equally observed. This shows that the developed algorithm is more energy efficient than LEACH and CTA and hence, with the developed algorithm the sensor nodes would last longer.

TO VIEW THE FULL CONTENT OF THIS DOCUMENT, PLEASE VISIT THE UNIZIK LIBRARY WEBSITE USING THIS LINK, http://naulibrary.org/dglibrary/admin/book_directory/electronics_computer_engr/11325.pdf

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