Title :
Robust loading in the presence of channel profile selection
Author :
Salvekar, Atul ; Cioffi, John
Author_Institution :
STAR Lab., Stanford Univ., CA, USA
Abstract :
Channel profile detection in multicarrier systems was investigated previously (see IEEE Global Telecommunications Conference, GLOBECOM´99, vol.2, p.1133-8, 1999). This paper investigates new algorithms for channel profile detection and determines a new low complexity algorithm. In the case that profile detection leads to channel selection errors, robust bit loading methods are introduced that will provide for reliable transmission until more accurate channel estimation is performed
Keywords :
digital subscriber lines; maximum likelihood estimation; modulation; quadrature amplitude modulation; telecommunication channels; ADSL; QAM constellation; channel estimation; channel profile selection; low complexity algorithm; multicarrier modulation; reliable transmission; robust bit loading methods; Cascading style sheets; Channel estimation; DSL; Degradation; Maximum likelihood detection; Maximum likelihood estimation; OFDM modulation; Performance gain; Robustness; Telecommunication computing;
Conference_Titel :
Signal Processing Proceedings, 2000. WCCC-ICSP 2000. 5th International Conference on
Conference_Location :
Beijing
Print_ISBN :
0-7803-5747-7
DOI :
10.1109/ICOSP.2000.893447
