Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Regularized Zero-Forcing Interference Alignment for the Two-Cell MIMO
  Interfering Broadcast Channel   In this paper, we propose transceiver design strategies for the two-cell
multiple-input multiple-output (MIMO) interfering broadcast channel where
inter-cell interference (ICI) exists in addition to interuser interference
(IUI). We first formulate the generalized zero-forcing interference alignment
(ZF-IA) method based on the alignment of IUI and ICI in multi-dimensional
subspace. We then devise a minimum weighted-mean-square-error (WMSE) method
based on regularizing the precoders and decoders of the generalized ZF-IA
scheme. In contrast to the existing weighted-sum-rate-maximizing transceiver,
our method does not require an iterative calculation of the optimal weights.
Because of this, the proposed scheme, while not designed specifically to
maximize the sum rate, is computationally efficient and achieves a faster
convergence compared to the known weighted-sum-rate maximizing scheme. Through
analysis and simulation, we show the effectiveness of the proposed regularized
ZF-IA scheme.

28
The categories of this paper are: alg-geom
35
The categories of this paper are: mtrl-th
33
The categories of this paper are: plasm-ph
21
The categories of this paper are: adap-org
3
The categories of this paper are: physics
7
The categories of this paper are: hep-th
0
The categories of this paper are: hep-ph
8
The categories of this paper are: hep-ex
31
The categories of this paper are: ao-sci
15
The categories of this paper are: nucl-ex
34
The categories of this paper are: chem-ph
36
The categories of this paper are: cmp-lg
16
The categories of this paper are: stat
10
The categories of this paper are: q-bio
22
The categories of this paper are: chao-dyn
5
The categories of this paper are: gr-qc