Paper Info
Title
Achievable rates of uplink multiuser massive MIMO systems with estimated channels
Abstract
We study the performance of uplink transmission in a large-scale (massive) MIMO system, where all the transmitters have single antennas and the receiver (base station) has a large number of antennas. Specifically, we first derive the rates that are possible through minimum mean-squared error (MMSE) channel estimation and three possible linear receivers: maximum ratio combining, zero-forcing, and MMSE. Based on the derived rates, we quantify the amount of energy savings that are possible through increased number of base-station antennas or increased coherence interval. We also analyze achievable degrees of freedom of such a system without assuming channel state information at the receiver, which turns out to be the same as that of a point-to-point MIMO channel. Linear receiver is sufficient when the number of users is less than the number of antennas. Otherwise, nonlinear processing is necessary to achieve the full degrees of freedom.
Year
DOI
Venue
2014
10.1109/GLOCOM.2014.7037395
GLOBECOM
Keywords
Field
DocType
maximum ratio combining,energy savings,channel state information,uplink transmission,diversity reception,linear receiver,increased coherence interval,point-to-point mimo channel,mmse channel estimation,linear receivers,minimum mean-squared error channel estimation,transmitters,least mean squares methods,nonlinear processing,mimo communication,full degrees-of-freedom,zero-forcing,base-station antennas,uplink multiuser massive mimo systems,large-scale mimo system,achievable degree-of-freedom,channel estimation,base stations,mimo,signal to noise ratio
Topology,3G MIMO,Multi-user MIMO,Computer science,Maximal-ratio combining,Control theory,MIMO,Communication channel,Real-time computing,Precoding,Telecommunications link,Channel state information
Conference
ISSN
Citations 
PageRank 
2334-0983
1
0.36
References 
Authors
6
2
Name
Order
Citations
PageRank
Songtao Lu18419.52
Zhengdao Wang21969149.43