Energy Efficiency and Sum Rate when Massive MIMO meets Device-to-Device Communication
Abstract
This paper considers a scenario of short-range communication, known as device-to-device (D2D) communication, where D2D users reuse the downlink resources of a cellular network to transmit directly to their corresponding receivers. In addition, multiple antennas at the base station (BS) are used in order to simultaneously support multiple cellular users using multiuser or massive MIMO. The network model considers a fixed number of cellular users and that D2D users are distributed according to a homogeneous Poisson point process (PPP). Two metrics are studied, namely, average sum rate (ASR) and energy efficiency (EE). We derive tractable expressions and study the tradeoffs between the ASR and EE as functions of the number of BS antennas and density of D2D users for a given coverage area.
Cite
@article{arxiv.1505.01858,
title = {Energy Efficiency and Sum Rate when Massive MIMO meets Device-to-Device Communication},
author = {Serveh Shalmashi and Emil Björnson and Marios Kountouris and Ki Won Sung and Mérouane Debbah},
journal= {arXiv preprint arXiv:1505.01858},
year = {2016}
}
Comments
6 pages, 7 figures, to be presented at the IEEE International Conference on Communications (ICC) Workshop on Device-to-Device Communication for Cellular and Wireless Networks, London, UK, June 2015