Design of DMA Assisted Simultaneous Wireless Information and Power Transfer Based on Statistical CSI
A dynamic metasurface antenna(DMA)assisted wireless portable communication transmission method based on statistical chan-nel state information(CSI)is proposed.A wireless portable communication system is introduced,consisting of a base station using a DMA array instead of a traditional antenna array,an information-decoding user,and an energy-harvesting user.The problem of maximizing the achievable ergodic rate under the constraints of average harvested energy and transmit power is proposed,where the channels are modeled as Rice channels.Firstly,the random matrix theory is used to transform the optimization problem into a deterministic optimization problem.Then,by applying alternating optimization methods,the transmit covariance matrix at the base station and DMA weight matrix are designed to maximize the achievable rate based on only statistical CSI.The simulation results show that the proposed method can achieve the optimal tradeoff between communication rate and harvested energy.
DMAsimultaneous wireless information and power transferstatistical CSIMIMO
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