Simultaneous Information and Energy Transmission in Gaussian Interference Channels

This paper was submitted to the 2018 International Zurich Seminar on Information and CommunicationIn this paper, the fundamental limits of simultaneous information and energy transmission in the two-user Gaussian interference channel (G-IC) without feedback are fully characterized. More specifically, an achievable and converse region in terms of information and energy transmission rates (in bits per channel use and energy-units per channel use, respectively) are presented. The achievable region is obtained using a combination of rate splitting, power-splitting, common randomness and superposition coding. Finally, the converse region is obtained using some of the existing outer bounds for the information transmission rates, as well as a new outer bound for the energy transmission rate