Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Wireless Traffic Prediction with Scalable Gaussian Process: Framework,
  Algorithms, and Verification   The cloud radio access network (C-RAN) is a promising paradigm to meet the
stringent requirements of the fifth generation (5G) wireless systems.
Meanwhile, wireless traffic prediction is a key enabler for C-RANs to improve
both the spectrum efficiency and energy efficiency through load-aware network
managements. This paper proposes a scalable Gaussian process (GP) framework as
a promising solution to achieve large-scale wireless traffic prediction in a
cost-efficient manner. Our contribution is three-fold. First, to the best of
our knowledge, this paper is the first to empower GP regression with the
alternating direction method of multipliers (ADMM) for parallel hyper-parameter
optimization in the training phase, where such a scalable training framework
well balances the local estimation in baseband units (BBUs) and information
consensus among BBUs in a principled way for large-scale executions. Second, in
the prediction phase, we fuse local predictions obtained from the BBUs via a
cross-validation based optimal strategy, which demonstrates itself to be
reliable and robust for general regression tasks. Moreover, such a
cross-validation based optimal fusion strategy is built upon a well
acknowledged probabilistic model to retain the valuable closed-form GP
inference properties. Third, we propose a C-RAN based scalable wireless
prediction architecture, where the prediction accuracy and the time consumption
can be balanced by tuning the number of the BBUs according to the real-time
system demands. Experimental results show that our proposed scalable GP model
can outperform the state-of-the-art approaches considerably, in terms of
wireless traffic prediction performance.

28
The categories of this paper are: alg-geom
37
The categories of this paper are: supr-con
12
The categories of this paper are: nucl-th
5
The categories of this paper are: gr-qc
21
The categories of this paper are: adap-org
34
The categories of this paper are: chem-ph
10
The categories of this paper are: q-bio
18
The categories of this paper are: econ
11
The categories of this paper are: hep-lat
23
The categories of this paper are: solv-int
24
The categories of this paper are: dg-ga
30
The categories of this paper are: q-alg
22
The categories of this paper are: chao-dyn
25
The categories of this paper are: patt-sol
0
The categories of this paper are: hep-ph
15
The categories of this paper are: nucl-ex