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 language | English |
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Article number | 6932425 |
Pages (from-to) | 4377-4382 |
Number of pages | 6 |
Journal | IEEE Transactions on Vehicular Technology |
Volume | 64 |
Issue number | 9 |
DOIs | |
Publication status | Published - 1 Sept 2015 |