Delay-Constrained Data Transmission for Energy Harvesting Transmitter

Abstract:
A point-to-point communication scenario is considered, where the transmitter is an energy harvesting node. During the transmission, energy packets and data packets of different sizes arrive at the transmitter. Specially, each data packet is associated with an individual deadline. The delay requirements for different data packets are generally considered to be different. Firstly, we investigate a delay-constrained throughput maximization problem. Two cases will be further distinguished, i.e., the case where incompletely transmitted data packets are useless and the case where the transmitted part of a data packet is still useful. Secondly, we additionally consider a delay-constrained energy minimization problem, e.g., when all the data packets can be completely transmitted in time. In this framework, we focus on modelling the considered scenario and optimization problems. In particular, the considered optimization problems can be formulated as convex and mixed-integer programs, respectively. The optimal transmission policies can be found by solving the corresponding optimization problems.