On the Energy Efficiency-Spectral Efficiency Trade-Off of the 2BS-DMIMO System

Abstract

Abstract-In this paper, we propose a novel closed-form approximation of the Energy Efficiency vs. Spectral Efficiency (EE-SE) trade-off for the uplink/downlink of distributed multipleinput multiple-output (DMIMO) system with two cooperating base stations. Our closed-form expression can be utilized for evaluating the idealistic and realistic EE-SE performances of various antenna configurations as well as assessing how DMIMO compares against MIMO system in terms of EE. Results show a tight match between our closed-form approximation and the Monte-Carlo simulation for both idealistic and realistic EE-SE trade-off. Our results also show that given a target SE requirement, there exists an optimal antenna setting that maximizes the EE. In addition, DMIMO scheme can offer significant improvement in terms of EE over the MIMO scheme.

On the Energy Efficiency-Spectral Efficiency Trade-Off of Distributed MIMO Systems

“…Finally, conclusions are drawn in Section VI. A preliminary version of this work has been reported in [28]. Herein, our DMIMO EE-SE trade-off expression has been made more generic and its low and high-SE approximations have also been derived.…”