Title :
An efficient algorithm for optimal discrete bit-loading in multicarrier systems
Author :
Mahmood, Asad ; Belfiore, J.C.
Author_Institution :
ENSTA, Paris, France
fDate :
6/1/2010 12:00:00 AM
Abstract :
An efficient algorithm for bit-loading in multicarrier systems is proposed based upon an allocation rhythm/order underlying the classical optimal greedy bit-allocation procedure. An accurate complexity comparison in terms of the exact number of execution cycles over a processor is made with the classical Greedy solution along with another recently proposed optimal bit-loading algorithm. Simulation results verify the significant complexity advantage of our algorithm with no loss in performance.
Keywords :
OFDM modulation; adaptive modulation; communication complexity; greedy algorithms; resource allocation; ultra wideband communication; adaptive modulation; classical optimal greedy bit-allocation procedure; multiband-OFDM based ultra wideband system; multicarrier systems; optimal discrete bit loading algorithm; resource allocation technique; Adaptive algorithm; Approximation algorithms; Communications Society; Convergence; OFDM; Performance loss; Rhythm; Throughput; Time factors; WiMAX; Adaptive modulation, algorithms.;
Journal_Title :
Communications, IEEE Transactions on
DOI :
10.1109/TCOMM.2010.06.0800482
