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Paper detail

MIMO SWIPT Systems with Power Amplifier Nonlinearities and Memory Effects

In this letter, we study the impact of nonlinear high power amplifier (HPA) on simultaneous wireless information and power transfer (SWIPT), for a point-to-point multiple-input multiple-output communication system. We derive the rate-energy (RE) region by taking into account the HPA nonlinearities and its associated memory effects. We show that HPA significantly degrades the achievable RE region, and a predistortion technique is investigated for compensation. The performance of the proposed predistortion scheme is evaluated in terms of RE region enhancement. Numerical results demonstrate that approximately 24% improvement is obtained for both power-splitting and time-splitting SWIPT architectures.

preprint2020arXivOpen access
Priyadarshi MukherjeeSouhir LajnefIoannis Krikidis
math.ITInformation Theoryeess.SP
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Priyadarshi MukherjeeSouhir LajnefIoannis Krikidis

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