Title :
A complete and optimal data allocation method for practical discrete multitone systems
Author :
Levin, Howard E.
Abstract :
A complete set of optimal data allocation algorithms for practical multicarrier systems is presented which solves three related problems: initial bit allocation, adaptive allocation updates, and limited power adjustments. Designed for standard compliant discrete multitone asymmetric digital subscriber line systems, the algorithms meet error correction overhead and spectral mask requirements. Unlike linear domain methods that are based on the gap approximation, these efficient algorithms are performed in the logarithmic domain and yield optimal results
Keywords :
digital subscriber lines; error correction; modems; modulation; optimisation; ADSL; ADSL modems; adaptive allocation updates; approximation; asymmetric digital subscriber line systems; complete data allocation method; discrete multitone modulation; error correction overhead; initial bit allocation; limited power adjustments; linear domain methods; logarithmic domain; multicarrier systems; optimal data allocation algorithms; optimal initial allocation algorithm; practical discrete multitone systems; spectral mask; Algorithm design and analysis; Approximation algorithms; Bit error rate; Bit rate; Constellation diagram; DSL; Error correction; Frequency conversion; OFDM modulation; Signal to noise ratio;
Conference_Titel :
Global Telecommunications Conference, 2001. GLOBECOM '01. IEEE
Conference_Location :
San Antonio, TX
Print_ISBN :
0-7803-7206-9
DOI :
10.1109/GLOCOM.2001.965141
