DeepAI AI Chat
Log In Sign Up

Computational Optimal Transport for 5G Massive C-RAN Device Association

05/03/2018
by   Georgios Paschos, et al.
0

The massive scale of future wireless networks will create computational bottlenecks in performance optimization. In this paper, we study the problem of connecting mobile traffic to Cloud RAN (C-RAN) stations. To balance station load, we steer the traffic by designing device association rules. The baseline association rule connects each device to the station with the strongest signal, which does not account for interference or traffic hot spots, and leads to load imbalances and performance deterioration. Instead, we can formulate an optimization problem to decide centrally the best association rule at each time instance. However, in practice this optimization has such high dimensions, that even linear programming solvers fail to solve. To address the challenge of massive connectivity, we propose an approach based on the theory of optimal transport, which studies the economical transfer of probability between two distributions. Our proposed methodology can further inspire scalable algorithms for massive optimization problems in wireless networks.

READ FULL TEXT

page 1

page 2

page 3

page 4

06/07/2021

Scalable Computation of Monge Maps with General Costs

Monge map refers to the optimal transport map between two probability di...
12/17/2018

User Association and Load Balancing for Massive MIMO through Deep Learning

This work investigates the use of deep learning to perform user cell ass...
01/24/2018

Optimal Cache Leasing from a Mobile Network Operator to a Content Provider

Caching popular content at the wireless edge is recently proposed as a m...
10/14/2022

Theory and Approximate Solvers for Branched Optimal Transport with Multiple Sources

Branched Optimal Transport (BOT) is a generalization of optimal transpor...
04/15/2020

Joint User Pairing and Association for Multicell NOMA: A Pointer Network-based Approach

In this paper, we investigate the joint user pairing and association pro...
10/01/2021

Factored couplings in multi-marginal optimal transport via difference of convex programming

Optimal transport (OT) theory underlies many emerging machine learning (...