Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Enabling the Multi-User Generalized Degrees of Freedom in the Gaussian
  Cellular Channel   There has been major progress over the last decade in understanding the
classical interference channel (IC). Recent key results show that constant bit
gap capacity results can be obtained from linear deterministic models (LDMs).
However, it is widely unrecognized that the time-invariant, frequency-flat
cellular channel, which contains the IC as a special case, possesses some
additional generalized degrees of freedom (GDoF) due to multi-user operation.
This was proved for the LDM cellular channel very recently but is an open
question for the corresponding Gaussian counterpart. In this paper, we close
this gap and provide an achievable sum-rate for the Gaussian cellular channel
which is within a constant bit gap of the LDM sum capacity. We show that the
additional GDoFs from the LDM cellular channel carry over. This is enabled by
signal scale alignment. In particular, the multi-user gain reduces the
interference by half in the 2-user per cell case compared to the IC.

9
The categories of this paper are: nlin
25
The categories of this paper are: patt-sol
7
The categories of this paper are: hep-th
14
The categories of this paper are: math-ph
5
The categories of this paper are: gr-qc
15
The categories of this paper are: nucl-ex
35
The categories of this paper are: mtrl-th
20
The categories of this paper are: acc-phys
17
The categories of this paper are: q-fin
0
The categories of this paper are: hep-ph
4
The categories of this paper are: cond-mat
22
The categories of this paper are: chao-dyn
24
The categories of this paper are: dg-ga
34
The categories of this paper are: chem-ph
21
The categories of this paper are: adap-org
19
The categories of this paper are: eess