Paper Info
Title
Sum Rate Analysis Of Mu-Miso Systems With Zf Beamforming Over Composite Fading Channels
Abstract
The performance of multiuser multiple-input singleoutput (MU-MISO) systems is not only affected by small-scale multipath fading but also by large-scale fading (i.e., shadowing) and path loss. In this paper, we concentrate on the sum rate distribution of MU-MISO systems employing linear zero-forcing beamforming, accounting for both multipath fading and shadowing effects, as well as spatial correlation at the transmit and receiver sides. In particular, we consider the classical spatially correlated lognormal model and propose closed-form bounds on the distribution of the achievable sum rates in MU-MISO systems. With the help of these bounds, we derive a relationship between the interuser distance and sum rate corresponding to 10% of the cumulative distribution function under different environmental conditions. A practical conclusion from our results based on the considered system is that the effect of spatially correlated shadowing can be considered to be independent when the interuser distance is approximately five times the shadowing correlation distance. Furthermore, a detailed analysis of the effects of composite channel attenuation consisting of multipath fading and shadowing is also provided.
Year
DOI
Venue
2015
10.1587/transfun.E98.A.558
IEICE TRANSACTIONS ON FUNDAMENTALS OF ELECTRONICS COMMUNICATIONS AND COMPUTER SCIENCES
Keywords
Field
DocType
spatially correlated shadowing, correlated rayleigh fading, sum rate, zero-forcing beamforming, MU-MISO
Beamforming,Topology,Discrete mathematics,Telecommunications,Fading,Communication channel,Composite number,Zero forcing beamforming,Fading distribution,Mathematics
Journal
Volume
Issue
ISSN
E98A
2
0916-8508
Citations 
PageRank 
References 
1
0.35
18
Authors
2
Name
Order
Citations
PageRank
Ou Zhao141.44
Hidekazu Murata216437.72