Ultra-Reliable Short-Packet Communications with Wireless Energy Transfer

TL;DR

This paper investigates ultra-reliable short-packet wireless communications with energy transfer, optimizing system parameters to meet strict error and latency requirements in fading channels, providing validated approximations and insights into channel use optimization.

Contribution

It introduces an analysis and optimization framework for energy and information transfer in ultra-reliable short-packet wireless systems under Nakagami-m fading, with validated approximations.

Findings

Optimal channel uses exist for energy and information transfer.

Approximate error probability models are validated through simulations.

System parameters can be tuned for ultra-reliable, low-latency communication.

Abstract

We analyze and optimize a wireless system with energy transfer in the downlink and information transfer in the uplink, under quasi-static Nakagami-m fading. We consider ultra-reliable communication scenarios representative of the fifth-generation of wireless systems, with strict error and latency requirements. The error probability and delay are investigated, and an approximation for the former is given and validated through simulations. The numerical results demonstrate that there are optimum numbers of channels uses for both energy and information transfer for a given message length.