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Title: | STPAP: Source Transmit Power Adaptation Policy for Collaborative Wireless Systems |
Authors: | Bitragunta, Sainath |
Keywords: | EEE Collaborative wireless system Optimization Power adaptation Energy efficiency Rayleigh fading channel |
Issue Date: | 2020 |
Publisher: | IEEE |
Abstract: | For the design of energy-efficient or green communication systems and networks, power adaptation has been studied extensively in the literature. A vital aspect of the same is to minimize the usage of resources wherever possible. This research implements a Source Transmit Power Adaptation Policy (STPAP) for a two hop collaborative wireless communication system. Our objective is to optimize end-to-end fading averaged-energy efficiency (FA-EE) when the source is subject to an average source power constraint. Specifically, we derive an analytical expression for FA-EE in terms of source power, which is adapted as a function of fading channels' state information (CSI). We compare optimal FA-EE results with CSI-independent, fixed source power FA-EE and verify through Monte-Carlo (MC) simulations and analytical results. We find that the proposed STPAP delivers superior performance in terms of FA-EE. We further extend our benchmarking to a scenario where a direct link between source and destination is absent. We also compare optimal FA-EE with fixed power FA-EE and quantify the proposed policy's performance gains. |
URI: | https://ieeexplore.ieee.org/document/9293885 http://dspace.bits-pilani.ac.in:8080/xmlui/handle/123456789/9608 |
Appears in Collections: | Department of Electrical and Electronics Engineering |
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