Real-time dynamic spectrum management for multi-user multi-carrier communication systems
Paschalis Tsiaflakis, Fran\c{c}ois Glineur, Marc Moonen

TL;DR
This paper introduces a real-time dynamic spectrum management algorithm that guarantees feasible, improved solutions under strict time constraints, using a novel transformation and coordinate ascent approach, suitable for interference-limited communication systems.
Contribution
It proposes a new RT-DSM algorithm with a difference-of-variables transformation and primal coordinate ascent, enabling fast, feasible solutions in real-time scenarios.
Findings
Demonstrates good performance in wireline and wireless systems
Low complexity and wide applicability of the algorithm
Effective under various interference-limited configurations
Abstract
Dynamic spectrum management is recognized as a key technique to tackle interference in multi-user multi-carrier communication systems and networks. However existing dynamic spectrum management algorithms may not be suitable when the available computation time and compute power are limited, i.e., when a very fast responsiveness is required. In this paper, we present a new paradigm, theory and algorithm for real-time dynamic spectrum management (RT-DSM) under tight real-time constraints. Specifically, a RT-DSM algorithm can be stopped at any point in time while guaranteeing a feasible and improved solution. This is enabled by the introduction of a novel difference-of-variables (DoV) transformation and problem reformulation, for which a primal coordinate ascent approach is proposed with exact line search via a logarithmicly scaled grid search. The concrete proposed algorithm is referred to…
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Taxonomy
TopicsWireless Communication Networks Research · Power Line Communications and Noise · Advanced Wireless Communication Techniques
