| Abstract
|
<p>Discrete-rate spectrum balancing … <p>Discrete-rate spectrum balancing in interference-limited multi-user and multi-carrier digital subscriber lines (DSL) is a large-scale, non-convex and combinatorial problem. Previously proposed algorithms for its (dual) optimal solution are only applicable for networks with few users, while the suboptimality of less complex bit-loading algorithms has not been adequately studied so far. We deploy constrained optimization techniques as well as problem-specific branch-and-bound and search-space reduction methods, which for the first time give a low-complexity guarantee of optimality in certain multi-user DSL networks of practical size. Simulation results precisely quantify the suboptimality of multi-user bit-loading schemes in a thousand ADSL2 scenarios under measured channel data.</p>ios under measured channel data.</p>
|
| Author
|
Martin Wolkerstorfer +
, Joakim Jaldén +
, Tomas Nordström +
|
| DOI
|
http://dx.doi.org/10.1016/j.sigpro.2012.06.007 +
|
| Diva
|
http://hh.diva-portal.org/smash/record.jsf?searchId=1&pid=diva2:550315
|
| EndPage
|
34 +
|
| Issue
|
1 +
|
| Journal
|
Signal Processing +
|
| PublicationType
|
Journal Paper +
|
| Publisher
|
Elsevier +
|
| StartPage
|
23 +
|
| Title
|
Low-Complexity OptimalDiscrete-Rate Spectrum Balancing in Digital Subscriber Lines +
|
| Volume
|
93 +
|
| Year
|
2013 +
|
| Has queryThis property is a special property in this wiki.
|
Publications:Low-Complexity OptimalDiscrete-Rate Spectrum Balancing in Digital Subscriber Lines +
, Publications:Low-Complexity OptimalDiscrete-Rate Spectrum Balancing in Digital Subscriber Lines +
, Publications:Low-Complexity OptimalDiscrete-Rate Spectrum Balancing in Digital Subscriber Lines +
, Publications:Low-Complexity OptimalDiscrete-Rate Spectrum Balancing in Digital Subscriber Lines +
, Publications:Low-Complexity OptimalDiscrete-Rate Spectrum Balancing in Digital Subscriber Lines +
, Publications:Low-Complexity OptimalDiscrete-Rate Spectrum Balancing in Digital Subscriber Lines +
, Publications:Low-Complexity OptimalDiscrete-Rate Spectrum Balancing in Digital Subscriber Lines +
, Publications:Low-Complexity OptimalDiscrete-Rate Spectrum Balancing in Digital Subscriber Lines +
, Publications:Low-Complexity OptimalDiscrete-Rate Spectrum Balancing in Digital Subscriber Lines +
, Publications:Low-Complexity OptimalDiscrete-Rate Spectrum Balancing in Digital Subscriber Lines +
|
| Categories |
Publication +
|
| Modification dateThis property is a special property in this wiki.
|
26 June 2014 03:44:30 +
|
