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Novel SWIPT schemes for 5G wireless networks
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Orientador(es)
Resumo(s)
In this paper, we present a few novel simultaneous wireless information and power transfer (SWIPT) schemes that can be effectively used in various 5G wireless network implementations. First, we study the possibility of integrating distributed energy beamforming with the data rate fairness beamforming in a cooperative communication system with multiple cooperative relays and multiple destination users communicating simultaneously. We show that the system exploits significant performance gain using such a joint energy and data rate fairness beamforming scheme. Further, we propose an enhanced version of the SWIPT scheme, the energy-efficient modulation-based non-orthogonal multiple access (M-NOMA) SWIPT scheme, and observe its system efficiency in terms of more harvested energy. Finally, we consider an energy-harvesting SWIPT scheme where the channel response is estimated using the energy-harvesting signal as pilots superimposed on the information signal. For such a scheme, we compute the optimum transmit power ratio between the pilot and information signals under varying SNR conditions and improve the accuracy of the decoding process at the reception.
Descrição
This work was funded, in part, by the Russian Federation State Project "Science", Grant No. 8.13264.2018/8.9, by the framework of the Competitiveness Enhancement Program of the National Research Tomsk Polytechnic University, and by Fundacao para a Ciencia e Tecnologia and Instituto de Telecomunicacoes, under Project UID/EEA/50008/2013.
Palavras-chave
Channel estimation Cooperative communications M-NOMA Receiver design SWIPT WPT Analytical Chemistry Atomic and Molecular Physics, and Optics Biochemistry Instrumentation Electrical and Electronic Engineering