Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Performance Comparison Between A Simple Full-Duplex Multi-Antenna Relay
  And A Passive Intelligent Reflecting Surface   In this paper, we propose a single RF-chain multi-antenna full-duplex (FD)
relay built with $b$-bit analog phase shifters and passive self-interference
cancellation. The hardware complexity of the proposed FD relay with 2-bit
quantized analog phase shifters is on the same order as the hardware complexity
of a passive intelligent reflecting surface (IRS). Next, assuming only passive
self-interference cancellation at the FD relay, we derive the achievable data
rate of a system comprised of a source, the proposed FD relay, and a
destination. We then compare the achievable data rate of the proposed FD
relaying system with the achievable data rate of the same system but with the
FD relay replaced by an ideal passive IRS. Our results show that the proposed
relaying system with 2-bit quantized analog phase shifters can significantly
outperform the IRS-assisted system. Intuitively, the IRS system is in
disadvantage since there the total transmit power $P_T$ is used entirely by the
source, whereas in the FD relaying system the total power $P_T$ is shared by
the source and the FD relay in addition to the noise-cleansing process
performed by the decode-and-forwarding at the FD relay.

9
The categories of this paper are: nlin
11
The categories of this paper are: hep-lat
5
The categories of this paper are: gr-qc
15
The categories of this paper are: nucl-ex
33
The categories of this paper are: plasm-ph
22
The categories of this paper are: chao-dyn
19
The categories of this paper are: eess
0
The categories of this paper are: hep-ph
37
The categories of this paper are: supr-con
25
The categories of this paper are: patt-sol
17
The categories of this paper are: q-fin
30
The categories of this paper are: q-alg
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The categories of this paper are: dg-ga
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The categories of this paper are: quant-ph
36
The categories of this paper are: cmp-lg
18
The categories of this paper are: econ