Paper Info
Title
Multipair massive MIMO full-duplex relaying with MRC/MRT processing
Abstract
We consider a multipair relay channel, where multiple sources communicate with multiple destinations with the help of a full-duplex (FD) relay station (RS). All sources and destinations have a single antenna, while the RS is equipped with massive arrays. We assume that the RS estimates the channels by using training sequences transmitted from sources and destinations. Then, it uses maximum-ratio combining/maximum-ratio transmission (MRC/MRT) to process the signals. To significantly reduce the loop interference (LI) effect, we propose two massive MIMO processing techniques: i) using a massive receive antenna array; or ii) using a massive transmit antenna array together with very low transmit power at the RS. We derive an exact achievable rate in closed-form and evaluate the system spectral efficiency. We show that, by doubling the number of antennas at the RS, the transmit power of each source and of the RS can be reduced by 1.5 dB if the pilot power is equal to the signal power and by 3 dB if the pilot power is kept fixed, while maintaining a given quality-of-service. Furthermore, we compare FD and half-duplex (HD) modes and show that FD improves significantly the performance when the LI level is low.
Year
DOI
Venue
2014
10.1109/ICC.2014.6884081
ICC
Keywords
Field
DocType
relay networks (telecommunication),diversity reception,maximum-ratio combining,signal processing,radiofrequency interference,power transmission,quality-of-service,quality of service,mrc/mrt processing,telecommunication power management,antenna arrays,system spectral efficiency,mimo communication,signal power,maximum-ratio transmission,multipair massive mimo full-duplex relaying,loop interference effect,multiple destinations,interference suppression,mimo processing techniques,pilot power,single antenna,channel estimation,antenna array,interference,mimo,maximum ratio combining,erbium
Relay channel,Multi-user MIMO,3G MIMO,Transmitter power output,Telecommunications,Computer science,Antenna array,MIMO,Real-time computing,Electronic engineering,Spectral efficiency,Duplex (telecommunications)
Conference
ISSN
Citations 
PageRank 
1550-3607
10
0.64
References 
Authors
13
4
Name
Order
Citations
PageRank
Hien Quoc Ngo12546129.55
Himal A. Suraweera22639117.31
Michail Matthaiou31842108.74
Erik G. Larsson410189605.81