Abstract
A robust simultaneous wireless information and power transfer (SWIPT) scheme for amplify-and-forward relay systems with a direct source-receiver link is investigated, taking into consideration imperfect channel state information (CSI). According to the minimum-mean-squared-error criterion, we formulate a joint beamforming problem under an energy harvesting constraint at the receiver plus transmitting power constraints at the source and relay. The non-convex problem is solved by semi-definite programming (SDP) and iterative method. Numerical results for mean-squared error and harvested energy performance against transmission power are evaluated. Simulation results show the improved robustness of the proposed transceiver design against the CSI errors and adjustable power splitting factor for better signal quality or more power harvesting.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.