Joint Relay Selection and Power Allocation for Energy Harvesting Cooperative Communication Systems
In this paper, we consider optimal relay selection and power allocation strategy in EH cooperative communication systems, with different assumptions on the availability of CSI and ESI. With non-causal ESI/CSI. With non-causal ESI/CSI, we show that relay selection and power allocation
can be formulated as a convex assignment problem and be solved by a branch-and-bound algorithm. With causal CSI/ESI, we formulate a online scheme which can serve as a performance lower bound, and propose a very simple and efficient solution. With causal CSI and non-causal/causal ESI, we formulate
a dynamic programming problem and propose several very simple and efficient suboptimal solution. Simulation results show that the proposed joint optimal scheme can efficiently improve system performance with low complexity.
Keywords: Energy Harvesting; Non-Causal ESI; Power Allocation; Relay Selection
Document Type: Research Article
Affiliations: Electrical Engineering School, Anhui Polytechnic University, Wuhu, 241000, China
Publication date: 01 September 2016
- Journal of Computational and Theoretical Nanoscience is an international peer-reviewed journal with a wide-ranging coverage, consolidates research activities in all aspects of computational and theoretical nanoscience into a single reference source. This journal offers scientists and engineers peer-reviewed research papers in all aspects of computational and theoretical nanoscience and nanotechnology in chemistry, physics, materials science, engineering and biology to publish original full papers and timely state-of-the-art reviews and short communications encompassing the fundamental and applied research.
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