Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Full-Duplex MIMO Relaying: Achievable Rates under Limited Dynamic Range   In this paper we consider the problem of full-duplex multiple-input
multiple-output (MIMO) relaying between multi-antenna source and destination
nodes. The principal difficulty in implementing such a system is that, due to
the limited attenuation between the relay's transmit and receive antenna
arrays, the relay's outgoing signal may overwhelm its limited-dynamic-range
input circuitry, making it difficult---if not impossible---to recover the
desired incoming signal. While explicitly modeling transmitter/receiver
dynamic-range limitations and channel estimation error, we derive tight upper
and lower bounds on the end-to-end achievable rate of decode-and-forward-based
full-duplex MIMO relay systems, and propose a transmission scheme based on
maximization of the lower bound. The maximization requires us to (numerically)
solve a nonconvex optimization problem, for which we detail a novel approach
based on bisection search and gradient projection. To gain insights into system
design tradeoffs, we also derive an analytic approximation to the achievable
rate and numerically demonstrate its accuracy. We then study the behavior of
the achievable rate as a function of signal-to-noise ratio,
interference-to-noise ratio, transmitter/receiver dynamic range, number of
antennas, and training length, using optimized half-duplex signaling as a
baseline.

21
The categories of this paper are: adap-org
12
The categories of this paper are: nucl-th
25
The categories of this paper are: patt-sol
28
The categories of this paper are: alg-geom
30
The categories of this paper are: q-alg
6
The categories of this paper are: astro-ph
5
The categories of this paper are: gr-qc
34
The categories of this paper are: chem-ph
22
The categories of this paper are: chao-dyn
32
The categories of this paper are: atom-ph
9
The categories of this paper are: nlin
3
The categories of this paper are: physics
31
The categories of this paper are: ao-sci
10
The categories of this paper are: q-bio
18
The categories of this paper are: econ
36
The categories of this paper are: cmp-lg