Title
Single-Cell vs. Multicell MIMO Downlink Signalling Strategies with Imperfect CSI
Abstract
This paper considers multi-antenna downlink communication with base stations (BSs) that perform joint transmitter null-space decomposition (JT-decomp) and conventional single-cell linear precoding strategies under imperfect channel state information (CSI). Upper bounds for the rate loss of JT-decomp precoding and conventional cellular systems are first provided, which demonstrate that unlike conventional systems, the percentage rate loss of JT-decomp cooperative base station (BS) system decreases as signal-to-noise ratio (SNR) increases. This shows that JT-decomp precoding, in spite of the imperfect CSI, preserves its spatial multiplexing gain at high SNR. Accurate closed-form analytical expressions for the net ergodic achievable rate and the rate loss under erroneous CSI of the JT-decomp cooperative BS system are also derived.
Year
DOI
Venue
2010
10.1109/GLOCOM.2010.5684208
Global Telecommunications Conference
Keywords
Field
DocType
MIMO communication,precoding,radio links,JT-decomp cooperative base station system,JT-decomp precoding,cellular system,imperfect channel state information,joint transmitter null-space decomposition,multi-antenna downlink communication,multicell MIMO downlink signalling,signal-to-noise ratio,single-cell MIMO downlink signalling,single-cell linear precoding,spatial multiplexing gain
Transmitter,Base station,Upper and lower bounds,Computer science,Control theory,Signal-to-noise ratio,MIMO,Interference (wave propagation),Precoding,Telecommunications link
Conference
ISSN
ISBN
Citations 
1930-529X E-ISBN : 978-1-4244-5637-6
978-1-4244-5637-6
2
PageRank 
References 
Authors
0.39
8
2
Name
Order
Citations
PageRank
Hassan A. Abou-Saleh1434.66
Steven D. Blostein232961.46