Wireless Energy Harvesting with Amplify-and-Forward Relaying and Link Adaptation under Imperfect Feedback Channel

Authors

  • Admoon Andrawes Centre of Advanced Electronic & Communication Engineering, Faculty of Engineering & Built Environment, Universiti Kebangsaan Malaysia, 43600 Bangi, Selangor, Malaysia
  • Rosdiadee Nordin Centre of Advanced Electronic & Communication Engineering, Faculty of Engineering & Built Environment, Universiti Kebangsaan Malaysia, 43600 Bangi, Selangor, Malaysia
  • Mahamod Ismail Centre of Advanced Electronic & Communication Engineering, Faculty of Engineering & Built Environment, Universiti Kebangsaan Malaysia, 43600 Bangi, Selangor, Malaysia

Keywords:

Adaptive Modulation, Energy Harvesting Relaying, Green Communications, Outage Probability, Spectral Efficiency?

Abstract

Energy harvesting is an alternative approach to extend the lifetime of wireless communications and decrease energy consumption, which results in fewer carbon emissions from wireless networks. In this study, adaptive modulation with EH relay is proposed. A power splitting mechanism for EH relay is used. The relay harvests energy from the source and forwards the information to the destination. A genetic algorithm (GA) is applied for the optimisation of the power splitting ratio at the relays. Two scenarios are considered namely, perfect and imperfect feedback channels. Results show that the spectral efficiency (SE) degradation, which is due to an imperfect feedback channel, was approximately 14% for conventional relays. The use of energy harvesting results in a degradation in the performance of SE of approximately 19% in case of a perfect feedback channel. Finally, an increase in the number of energy harvesting relays enhances the SE by 22%.

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Published

2018-08-28

How to Cite

Andrawes, A., Nordin, R., & Ismail, M. (2018). Wireless Energy Harvesting with Amplify-and-Forward Relaying and Link Adaptation under Imperfect Feedback Channel. Journal of Telecommunication, Electronic and Computer Engineering (JTEC), 10(3), 83–90. Retrieved from https://jtec.utem.edu.my/jtec/article/view/3524

Issue

Vol. 10 No. 3: July - September 2018

Section

Articles

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