Rate-maximized transceiver optimization for multi-antenna Device-to-Device communications

In this paper, we investigate the performance enhanced transceiver design in a Device-to-Device (D2D) communication system underlaying a cellular network. The problem of joint transmitter and receiver optimization via maximizing the entire D2D and cellular transmission rate is considered. Due to the non-convexity of the primal problem, we resort to decomposing the problem into a sequence of standard convex quadratic programs. An iterative sequential optimization algorithm is accordingly presented for joint transceiver design at both the base station and the device terminals. Computer simulations convinced the performance enhancement of our proposed scheme compared with conventional transmission schemes.