Improving the energy efficiency of power line communications by spectrum sensing

Authors:
Hongjian Sun;Arumugam Nallanathan;Jing Jiang
Affiliations:
King's College London London, U. K.;King's College London London, U. K.;University of Surrey Guildford, U. K.
Venue:
Proceedings of the International Conference on Advances in Computing, Communications and Informatics
Year:
2012

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Abstract

Due to global energy concerns, much emphasis is placed on reducing the energy usage of power line communications (PLC). PLC, however, presents many significant challenges, such as narrowband interference, that makes the energy efficiency reduced. In this paper, a green data transmission system is proposed that improves the energy efficiency of PLC by using spectrum sensing techniques. Furthermore, a performance optimization algorithm is presented that maximizes the energy efficiency of PLC by carefully choosing the optimal spectrum sensing duration and the optimal transmit powers. Numerical results verify that the proposed system can mitigate the effects of interference, with improved energy efficiency.