Zhengyu Zhu

TL;DR: A quadratic energy trading-based Stackelberg game, linear energy trading -based StACkelberggame, and social welfare scheme, in which the Stackellberg equilibrium for the formulated games is derived, and the optimal solution for the socialelfare scheme is proposed.

TL;DR: This paper investigates simultaneous wireless information and power transfer (SWIPT) for a multiple-input-single-output (MISO) secrecy channel with two relaxation approaches, i.e., a two-level optimization algorithm and a successive convex approximation (SCA), to solve the secrecy rate maximization problem.

TL;DR: This paper proposes a low-complexity approach, based on a successive convex approximation (SCA) method, which reformulates the original problem as a second-order cone programming problem and proves the convergence of the SCA-based iterative algorithm.

TL;DR: In this paper, an energy harvesting scheme for a multi-user multiple-input-multiple-output (MIMO) secrecy channel with artificial noise (AN) transmission is investigated, where the transmit beamforming matrix, the AN covariance matrix, and the power splitting ratio are jointly optimized to minimize the transmit power under the target secrecy rate, the total transmit power, and harvested energy constraints.

TL;DR: In this letter, secure beamforming designs are investigated in a multiple-input multiple-output secrecy channels with simultaneous wireless information and power transfer and an SCA-based iterative algorithm is proposed in the perfect channel state information (CSI) case to obtain a near-optimal rank-one solution.