Diversity and Multiplexing Tradeoff in the Uplink of Cellular Systems with Linear MMSE Receiver

TL;DR

This paper extends the diversity-multiplexing tradeoff analysis to cellular uplink systems with linear MMSE receivers, highlighting how inter-cell interference impacts system reliability and efficiency.

Contribution

It introduces a novel analysis of the fundamental diversity-multiplexing-interference tradeoff in cellular systems, revealing the effects of inter-cell interference on system performance.

Findings

Inter-cell interference reduces diversity gain.

Higher multiplexing gain increases interference impact.

Multiple antennas can mitigate interference effects.

Abstract

In this paper, we extend the diversity and multiplexing tradeoff (DMT) analysis from point-to-point channels to cellular systems to evaluate the impact of inter-cell interference on the system reliability and efficiency. Fundamental tradeoff among diversity order, multiplexing gain and inter-cell interference intensity is characterized to reveal the capability of multiple antennas in cellular systems. And the detrimental effects of the inter-cell interference on the system performance of diversity and multiplexing is presented and analyzed.