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Receiver Design to Employ Simultaneous Wireless Information and Power Transmission with Joint CFO and Channel Estimation
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Orientador(es)
Resumo(s)
Radio-frequency energy harvesting (EH) is one of the enabling technologies for the next-generation wireless communication systems. EH techniques are specifically used to improve the energy efficiency of the system. Recently, the simultaneous wireless information and power transmission (SWIPT) protocol is adapted for EH. In this paper, we design a new receiver for joint carrier frequency offset (CFO) and channel estimation on single-carrier modulations with frequency-domain equalization along with SWIPT implementation for EH by using the pilot signal. The pilot signal is a highly energized signal, which is superimposed with the information signal. The superimposed signal is used not only to transmit power for EH purposes but also to estimate the CFO and channel conditions. The receiver is designed to accommodate the strong interference levels in the channel estimation and data detection. The proposed scheme offers a flexible design method and efficient resource utilization. We validate our analytical results using simulations.
Descrição
This work was supported in part by the Framework of the Competitiveness Enhancement Program of the National Research Tomsk Polytechnic University, Russia, and in part by the Fundacao para a Ciencia e Tecnologia and the Instituto de Telecomunicacoes under Project UID/EEA/50008/2013.
Palavras-chave
CFO estimation Channel estimation energy harvesting SC-FDE SWIPT General Computer Science General Materials Science General Engineering SDG 7 - Affordable and Clean Energy