Abstract: This paper proposes a robust simultaneous wireless information and power transfer optimization scheme for multicell multicast coordinated networks with imperfect channel state information. The proposed scheme aims to maximize the minimal signal to interference plus noise radio under the constraints of energy harvesting of each user and power consumption of each cell,by which the worst quality of service of users is thus optimized on condition of the energy harvesting requirement and the system power budget. To solve the problem,the original problem is reformulated to a quasi-convex problem by using semi-definite relaxation and S-Lemma, which, thereby, can be solved by bisection iterative algorithm. Simulations under different transmission parameters not only verify the correctness of the system designs, but also show good convergence properties of the iterative algorithm.

Key words: signal to interference plus noise ratio balancing, wireless information and power transfer, beamforming, robust optimization, convex optimization