An Exclusion zone for Massive MIMO With Underlay D2D Communication

TL;DR

This paper proposes a framework for Massive MIMO systems with underlay D2D communication that reduces pilot contamination and improves spectral efficiency, enhancing network coverage and channel estimation.

Contribution

It introduces a novel scheme integrating D2D underlay with Massive MIMO to mitigate pilot contamination and optimize spectral efficiency.

Findings

D2D underlay reduces pilot contamination in Massive MIMO.

The scheme improves spectral efficiency of the network.

Network coverage is maintained with enhanced channel estimation.

Abstract

Fifth generation networks will incorporate a variety of new features in wireless networks such as data offloading, D2D communication, and Massive MIMO. Massive MIMO is specially appealing since it achieves huge gains while enabling simple processing like MRC receivers. It suffers, though, from a major shortcoming refereed to as pilot contamination. In this paper we propose a frame-work in which, a D2D underlaid Massive MIMO system is implemented and we will prove that this scheme can reduce the pilot contamination problem while enabling an optimization of the system spectral efficiency. The D2D communication will help maintain the network coverage while allowing a better channel estimation to be performed.