Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Context-aware Telco Outdoor Localization   Recent years have witnessed the fast growth in telecommunication (Telco)
techniques from 2G to upcoming 5G. Precise outdoor localization is important
for Telco operators to manage, operate and optimize Telco networks. Differing
from GPS, Telco localization is a technique employed by Telco operators to
localize outdoor mobile devices by using measurement report (MR) data. When
given MR samples containing noisy signals (e.g., caused by Telco signal
interference and attenuation), Telco localization often suffers from high
errors. To this end, the main focus of this paper is how to improve Telco
localization accuracy via the algorithms to detect and repair outlier positions
with high errors. Specifically, we propose a context-aware Telco localization
technique, namely RLoc, which consists of three main components: a
machine-learning-based localization algorithm, a detection algorithm to find
flawed samples, and a repair algorithm to replace outlier localization results
by better ones (ideally ground truth positions). Unlike most existing works to
detect and repair every flawed MR sample independently, we instead take into
account spatio-temporal locality of MR locations and exploit trajectory context
to detect and repair flawed positions. Our experiments on the real MR data sets
from 2G GSM and 4G LTE Telco networks verify that our work RLoc can greatly
improve Telco location accuracy. For example, RLoc on a large 4G MR data set
can achieve 32.2 meters of median errors, around 17.4% better than
state-of-the-art.

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The categories of this paper are: mtrl-th
18
The categories of this paper are: econ
22
The categories of this paper are: chao-dyn
30
The categories of this paper are: q-alg
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The categories of this paper are: acc-phys
26
The categories of this paper are: bayes-an
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The categories of this paper are: q-fin
3
The categories of this paper are: physics
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The categories of this paper are: dg-ga
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The categories of this paper are: math-ph
5
The categories of this paper are: gr-qc
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The categories of this paper are: adap-org
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The categories of this paper are: cmp-lg
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The categories of this paper are: supr-con
6
The categories of this paper are: astro-ph
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The categories of this paper are: patt-sol