Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Divide and Conquer: One-Bit MIMO-OFDM Detection by Inexact Expectation
  Maximization   Adopting one-bit analog-to-digital convertors (ADCs) for massive
multiple-input multiple-output (MIMO) implementations has great potential in
reducing the hardware cost and power consumption. However, distortions caused
by quantization raise great challenges. In MIMO orthogonal frequency-division
modulation (OFDM) detection, coarse quantization renders the orthogonal
separation among subcarriers inapplicable, forcing us to deal with a problem
that has a very large problem size. In this paper we study the
expectation-maximization (EM) approach for one-bit MIMO-OFDM detection. The
idea is to iteratively decouple the MIMO-OFDM detection problem among
subcarriers. Using the perspective of block coordinate descent, we describe
inexact variants of the classical EM method for providing more flexible and
computationally efficient designs. Simulation results are provided to
illustrate the potential of the divide-and-conquer strategy enabled by EM.

31
The categories of this paper are: ao-sci
16
The categories of this paper are: stat
4
The categories of this paper are: cond-mat
27
The categories of this paper are: comp-gas
0
The categories of this paper are: hep-ph
14
The categories of this paper are: math-ph
23
The categories of this paper are: solv-int
20
The categories of this paper are: acc-phys
10
The categories of this paper are: q-bio
33
The categories of this paper are: plasm-ph
30
The categories of this paper are: q-alg
22
The categories of this paper are: chao-dyn
26
The categories of this paper are: bayes-an
36
The categories of this paper are: cmp-lg
11
The categories of this paper are: hep-lat
32
The categories of this paper are: atom-ph