Publications:Coverage Optimization in DSL Networks by Low-Complexity Discrete Spectrum Balancing
From CERES
| Title | Coverage Optimization in DSL Networks by Low-Complexity Discrete Spectrum Balancing |
|---|---|
| Author | M. Wolkerstorfer and Tomas Nordström |
| Year | 2011 |
| PublicationType | Conference Paper |
| Journal | |
| HostPublication | |
| DOI | http://dx.doi.org/10.1109/GLOCOM.2011.6134345 |
| Conference | In Proc. IEEE Global Communications Conference (GLOBECOM), Houston, Texas, USA, December 5-9, 2011 |
| Diva url | http://hh.diva-portal.org/smash/record.jsf?searchId=1&pid=diva2:588880 |
| Abstract | Spectrum balancing is an established optimization approach in multi-carrier digital subscriber line (DSL) systems. It has previously been applied to very different performance objectives such as sum-rate, min-rate, or fairness maximization and sum-power minimization. In this work we study the maximization of the service coverage, which will be defined as the number of DSL lines which can be granted an operator-specified high-bandwidth service. The proposed algorithm is based on a previously described mathematical decomposition framework. We extend this framework for our new problem and enhance its scalability by various low-complexity heuristics. Simulations demonstrate the applicability of our algorithm for DSL networks of realistic sizes. More precisely, our results obtained in thousand 25 user near-far DSL scenarios show an average gain in service coverage of more than 13% compared to state-of-the-art sum-rate maximizing spectrum balancing algorithms. © 2011 IEEE. |
