Title :
On optimal bit loading for multitone ADSL
Author_Institution :
Dept. of Electron. Eng., Nat. Chiao Tung Univ., Hsinchu, Taiwan
Abstract :
Bit loading is a key issue in digital subscriber line transmission employing discrete multitone (DMT) modulation. We demonstrate that most existing algorithms are suboptimal. We present a solution based on the Lagrange multiplier approach. Numerical results are presented to illustrate the solution´s performance
Keywords :
digital subscriber lines; error statistics; minimax techniques; Lagrange multiplier approach; discrete multitone modulation; multitone ADSL; optimal bit loading; AWGN; Additive white noise; Bit error rate; DSL; Digital modulation; Error probability; Gaussian noise; OFDM modulation; Quadrature amplitude modulation; Signal to noise ratio;
Conference_Titel :
Circuits and Systems, 2000. Proceedings. ISCAS 2000 Geneva. The 2000 IEEE International Symposium on
Conference_Location :
Geneva
Print_ISBN :
0-7803-5482-6
DOI :
10.1109/ISCAS.2000.858822
