A Composite Approach to Self-sustainable Transmissions: Rethinking OFDM

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Provided by: Institute of Electrical & Electronic Engineers
Topic: Mobility
Format: PDF
In this paper, the authors propose two novel strategies to extend the battery life of an Orthogonal Frequency Division Multiplexing (OFDM) receiver, by exploiting the concept of Wireless Power Transfer (WPT). First a new receiver architecture is devised that does not discard the Cyclic Prefix (CP), but instead, exploits it to extract power from the received signal, realizing a WPT between the transmitter and the receiver. Subsequently, a flexible composite transmit strategy is designed, in which the OFDM transmitter transmits to the receiver two independent signals coexisting in the same band.
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