| Abstract
|
<p>We consider a constrained multi-c … <p>We consider a constrained multi-carrier powerallocation problem in interference-limited multi-user systemswith a finite set of transmission rates. The Lagrange relaxationis a common technique for decomposing such problems intoindependently solvable per-subcarrier problems. Deviating fromthis approach our main contribution is the proposal of anovel spectrum management framework based on a NonlinearDantzig-Wolfe problem decomposition. It allows for suboptimalinitialization and suboptimal power allocation methods with lowcomplexity. While we show that the combinatorial per-subcarrierproblems have polynomial complexity in the number of users,we find that such suboptimal methods are indispensable inlarge systems. Thus we give an overview of various basic dualheuristics and provide simulation results on a set of thousanddigital subscriber line (DSL) networks which show the superiorperformance of our framework compared to previous powercontrol algorithms.</p>revious powercontrol algorithms.</p>
|
| Author
|
Martin Wolkerstorfer +
, Joakim Jaldén +
, Tomas Nordström +
|
| DOI
|
http://dx.doi.org/10.1109/TCOMM.2012.070912.110444 +
|
| Diva
|
http://hh.diva-portal.org/smash/record.jsf?searchId=1&pid=diva2:550309
|
| EndPage
|
2722 +
|
| Issue
|
9 +
|
| Journal
|
IEEE Transactions on Communications +
|
| PublicationType
|
Journal Paper +
|
| Publisher
|
IEEE Press +
|
| StartPage
|
2712 +
|
| Title
|
Column Generation for Discrete-Rate Multi-User and Multi-Carrier Power Control +
|
| Volume
|
60 +
|
| Year
|
2012 +
|
| Has queryThis property is a special property in this wiki.
|
Publications:Column Generation for Discrete-Rate Multi-User and Multi-Carrier Power Control +
, Publications:Column Generation for Discrete-Rate Multi-User and Multi-Carrier Power Control +
, Publications:Column Generation for Discrete-Rate Multi-User and Multi-Carrier Power Control +
, Publications:Column Generation for Discrete-Rate Multi-User and Multi-Carrier Power Control +
, Publications:Column Generation for Discrete-Rate Multi-User and Multi-Carrier Power Control +
, Publications:Column Generation for Discrete-Rate Multi-User and Multi-Carrier Power Control +
, Publications:Column Generation for Discrete-Rate Multi-User and Multi-Carrier Power Control +
, Publications:Column Generation for Discrete-Rate Multi-User and Multi-Carrier Power Control +
, Publications:Column Generation for Discrete-Rate Multi-User and Multi-Carrier Power Control +
, Publications:Column Generation for Discrete-Rate Multi-User and Multi-Carrier Power Control +
|
| Categories |
Publication +
|
| Modification dateThis property is a special property in this wiki.
|
26 June 2014 03:44:31 +
|
