Energy-harvesting powered transmissions of delay-limited data packets

This paper develops novel approaches for energy-harvesting powered transmissions of delay-limited busty data packets under both ideal and non-ideal circuit power consumption. It is shown that the problems can be formulated as convex programs. Relying on the specific structure of the optimality conditions, we put forth efficient algorithms to find the optimal transmission strategies with a low computational complexity. It is revealed that the optimal energy departure curve for the ideal circuit power case can be yielded by a vivid calculus method. On the other hand, the optimal energy departure for the general non-ideal circuit power case can be obtained by simply adjusting the ideal-case energy departure in accordance to an energy efficient (EE) maximizing power value.