Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A Refined Analysis of the Gap between Expected Rate for Partial CSIT and
  the Massive MIMO Rate Limit   Optimal BeamFormers (BFs) that maximize the Weighted Sum Rate (WSR) for a
Multiple-Input Multiple-Output (MIMO) interference broadcast channel (IBC)
remains an important research area. Under practical scenarios, the problem is
compounded by the fact that only partial channel state information at the
transmitter (CSIT) is available. Hence, a typical choice of the optimization
metric is the Expected Weighted Sum Rate (EWSR). However, the presence of the
expectation operator makes the optimization a daunting task. On the other hand,
for the particular, but significant, special case of massive MIMO (MaMIMO), the
EWSR converges to Expected Signal covariance Expected Interference covariance
based WSR (ESEI-WSR) and this metric is more amenable to optimization.
Recently, [1] considered a multi-user Multiple-Input Single-Output (MISO)
scenario and proposed approximating the EWSR by ESEI-WSR. They then derived a
constant bound for this approximation. This paper performs a refined analysis
of the gap between EWSR and ESEI-WSR criteria for finite antenna dimensions.

9
The categories of this paper are: nlin
33
The categories of this paper are: plasm-ph
1
The categories of this paper are: cs
26
The categories of this paper are: bayes-an
0
The categories of this paper are: hep-ph
35
The categories of this paper are: mtrl-th
31
The categories of this paper are: ao-sci
13
The categories of this paper are: quant-ph
17
The categories of this paper are: q-fin
3
The categories of this paper are: physics
16
The categories of this paper are: stat
28
The categories of this paper are: alg-geom
15
The categories of this paper are: nucl-ex
21
The categories of this paper are: adap-org
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The categories of this paper are: astro-ph
7
The categories of this paper are: hep-th