Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Optimal Secure GDoF of Symmetric Gaussian Wiretap Channel with a Helper   We study a symmetric Gaussian wiretap channel with a helper, where a
confidential message is sent from a transmitter to a legitimate receiver, in
the presence of a helper and an eavesdropper, under a weak notion of secrecy
constraint. For this setting, we characterize the optimal secure generalized
degrees-of-freedom (GDoF). The result reveals that, adding a helper can
significantly increase the secure GDoF of the wiretap channel. The result is
supported by a new converse and a new scheme. In the proposed scheme, the
helper sends a cooperative jamming signal at a specific power level and
direction. In this way, it minimizes the penalty in GDoF incurred by the
secrecy constraint. In the secure rate analysis, the techniques of noise
removal and signal separation are used.

21
The categories of this paper are: adap-org
0
The categories of this paper are: hep-ph
37
The categories of this paper are: supr-con
29
The categories of this paper are: funct-an
19
The categories of this paper are: eess
11
The categories of this paper are: hep-lat
20
The categories of this paper are: acc-phys
33
The categories of this paper are: plasm-ph
34
The categories of this paper are: chem-ph
28
The categories of this paper are: alg-geom
8
The categories of this paper are: hep-ex
15
The categories of this paper are: nucl-ex
31
The categories of this paper are: ao-sci
17
The categories of this paper are: q-fin
32
The categories of this paper are: atom-ph
3
The categories of this paper are: physics