Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Full-Duplex MIMO Systems with Hardware Limitations and Imperfect Channel
  Estimation   We consider a bidirectional in-band full-duplex (FD) multiple-input
multiple-output (MIMO) system subject to imperfect channel state information
(CSI), hardware distortion, and limited analog cancellation capability as well
as the self-interference (SI) power requirement at the receiver analog domain
so as to avoid the saturation of low noise amplifier (LNA). A novel minimum
mean square error (MMSE)-based joint design of digital precoder and combiner
for SI cancellation is offered, which combines the well-known gradient
projection method and non-monotonicity considered in recent machine-learning
literature in order to tackle the non-convexity of the optimization problem
formulated in this article. Simulation results illustrate the effectiveness of
the proposed SI cancellation algorithm.

1
The categories of this paper are: cs
37
The categories of this paper are: supr-con
8
The categories of this paper are: hep-ex
32
The categories of this paper are: atom-ph
13
The categories of this paper are: quant-ph
14
The categories of this paper are: math-ph
29
The categories of this paper are: funct-an
5
The categories of this paper are: gr-qc
7
The categories of this paper are: hep-th
9
The categories of this paper are: nlin
26
The categories of this paper are: bayes-an
11
The categories of this paper are: hep-lat
36
The categories of this paper are: cmp-lg
4
The categories of this paper are: cond-mat
30
The categories of this paper are: q-alg
18
The categories of this paper are: econ