Power Scaling Laws for Massive MIMO Relay Systems with Linear Transceivers
Paper in proceedings, 2016

In this paper, we study the uplink of a relay- assisted multiuser massive MIMO system. The relay station (RS) equipped with M1 antennas processes the received signal from K single-antenna users, using maximum ratio combining (MRC)/zero-forcing (ZF) detection, and then forwards the post- processed signal to the base station (BS) with M2 antennas, according to the all-pass relay protocol. In particular, we derive closed-form approximations of the ergodic achievable rate lower bounds, assuming that MRC/ZF combining is performed at the BS. Furthermore, we examine the power scaling law of the proposed system, and find that the transmit powers of relay or users can be reduced in proportion to M1 or M2, respectively, without any loss in the achievable rate.

Author

Xi Yang

Southeast University

Xuesong Liang

Nanjing University of Posts and Telecommunications

Xinlin Zhang

Chalmers, Signals and Systems, Signalbehandling och medicinsk teknik, Signal Processing

S. Jin

Southeast University

Tiecheng Song

Southeast University

2015 IEEE Global Conference on Signal and Information Processing, GlobalSIP 2015. Orlando; United States; 13-16 December 2015

7416932, Pages 38-42

Areas of Advance

Information and Communication Technology

Subject Categories

Electrical Engineering, Electronic Engineering, Information Engineering

DOI

10.1109/GlobalSIP.2015.7416932

ISBN

9781479975914

More information

Created

10/7/2017