Training-Based SWIPT: Optimal Power Splitting at the Receiver

Xiangyun Zhou*

*Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    43 Citations (Scopus)

    Abstract

    We consider a point-to-point system with simultaneous wireless information and power transfer (SWIPT) over a block-fading channel. Each transmission block consists of a training phase and a data transmission phase. Pilot symbols are transmitted during the training phase for channel estimation at the receiver. To enable SWIPT, the receiver adopts a power-splitting design, such that a portion of the received signal is used for channel estimation or data detection, while the rest is used for energy harvesting. We optimally design the power-splitting ratios for both training and data phases to achieve the best ergodic capacity performance while maintaining a required energy harvesting rate. Our result shows how a power-splitting receiver can make the best use of the received pilot and data signals to obtain optimal SWIPT performance.

    Original languageEnglish
    Article number6932425
    Pages (from-to)4377-4382
    Number of pages6
    JournalIEEE Transactions on Vehicular Technology
    Volume64
    Issue number9
    DOIs
    Publication statusPublished - 1 Sept 2015

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