Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Distributed Detection of Sparse Stochastic Signals via Fusion of 1-bit
  Local Likelihood Ratios   In this letter, we consider the detection of sparse stochastic signals with
sensor networks (SNs), where the fusion center (FC) collects 1-bit data from
the local sensors and then performs global detection. For this problem, a newly
developed 1-bit locally most powerful test (LMPT) detector requires 3.3Q
sensors to asymptotically achieve the same detection performance as the
centralized LMPT (cLMPT) detector with Q sensors. This 1-bit LMPT detector is
based on 1-bit quantized observations without any additional processing at the
local sensors. However, direct quantization of observations is not the most
efficient processing strategy at the sensors since it incurs unnecessary
information loss. In this letter, we propose an improved-1-bit LMPT (Im-1-bit
LMPT) detector that fuses local 1-bit quantized likelihood ratios (LRs) instead
of directly quantized local observations. In addition, we design the
quantization thresholds at the local sensors to ensure asymptotically optimal
detection performance of the proposed detector. It is shown theoretically and
numerically that, with the designed quantization thresholds, the proposed
Im-1-bit LMPT detector for the detection of sparse signals requires less number
of sensor nodes to compensate for the performance loss caused by 1-bit
quantization.

16
The categories of this paper are: stat
26
The categories of this paper are: bayes-an
29
The categories of this paper are: funct-an
36
The categories of this paper are: cmp-lg
7
The categories of this paper are: hep-th
21
The categories of this paper are: adap-org
33
The categories of this paper are: plasm-ph
14
The categories of this paper are: math-ph
17
The categories of this paper are: q-fin
32
The categories of this paper are: atom-ph
35
The categories of this paper are: mtrl-th
24
The categories of this paper are: dg-ga
18
The categories of this paper are: econ
28
The categories of this paper are: alg-geom
15
The categories of this paper are: nucl-ex
9
The categories of this paper are: nlin