Accelerating Generalized Benders Decomposition for Wireless Resource
Allocation
- URL: http://arxiv.org/abs/2003.01294v2
- Date: Thu, 15 Oct 2020 01:11:11 GMT
- Title: Accelerating Generalized Benders Decomposition for Wireless Resource
Allocation
- Authors: Mengyuan Lee, Ning Ma, Guanding Yu, and Huaiyu Dai
- Abstract summary: Generalized Benders decomposition (GBD) is a globally optimal algorithm for mixed integer nonlinear programming (MINLP) problems.
We propose to leverage machine learning (ML) techniques to accelerate GBD aiming at decreasing the complexity of the master problem.
- Score: 40.75748765274763
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: Generalized Benders decomposition (GBD) is a globally optimal algorithm for
mixed integer nonlinear programming (MINLP) problems, which are NP-hard and can
be widely found in the area of wireless resource allocation. The main idea of
GBD is decomposing an MINLP problem into a primal problem and a master problem,
which are iteratively solved until their solutions converge. However, a direct
implementation of GBD is time- and memory-consuming. The main bottleneck is the
high complexity of the master problem, which increases over the iterations.
Therefore, we propose to leverage machine learning (ML) techniques to
accelerate GBD aiming at decreasing the complexity of the master problem.
Specifically, we utilize two different ML techniques, classification and
regression, to deal with this acceleration task. In this way, a cut classifier
and a cut regressor are learned, respectively, to distinguish between useful
and useless cuts. Only useful cuts are added to the master problem and thus the
complexity of the master problem is reduced. By using a resource allocation
problem in device-to-device communication networks as an example, we validate
that the proposed method can reduce the computational complexity of GBD without
loss of optimality and has strong generalization ability. The proposed method
is applicable for solving various MINLP problems in wireless networks since the
designs are invariant for different problems.
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