Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The Capacity of the Semi-Deterministic Cognitive Interference Channel
  with a Common Cognitive Message and Approximate Capacity for the Gaussian
  Case   In this paper the study of the cognitive interference channel with a common
message, a variation of the classical cognitive interference channel in which
the cognitive message is decoded at both receivers. We derive the capacity for
the semideterministic channel in which the output at the cognitive decoder is a
deterministic function of the channel inputs. We also show capacity to within a
constant gap and a constant factor for the Gaussian channel in which the
outputs are linear combinations of the channel inputs plus an additive Gaussian
noise term. Most of these results are shown using an interesting transmission
scheme in which the cognitive message, decoded at both receivers, is also
pre-coded against the interference experienced at the cognitive decoder. The
pre-coding of the cognitive message does not allow the primary decoder to
reconstruct the interfering signal. The cognitive message acts instead as a
side information at the primary receiver when decoding its intended message.

30
The categories of this paper are: q-alg
21
The categories of this paper are: adap-org
11
The categories of this paper are: hep-lat
13
The categories of this paper are: quant-ph
36
The categories of this paper are: cmp-lg
35
The categories of this paper are: mtrl-th
3
The categories of this paper are: physics
37
The categories of this paper are: supr-con
26
The categories of this paper are: bayes-an
4
The categories of this paper are: cond-mat
15
The categories of this paper are: nucl-ex
24
The categories of this paper are: dg-ga
18
The categories of this paper are: econ
20
The categories of this paper are: acc-phys
5
The categories of this paper are: gr-qc
14
The categories of this paper are: math-ph