Title :
A new method for PAR reduction in baseband DMT systems
Author :
Krongold, Brian S. ; Jones, Douglas L.
Author_Institution :
Dept. of Electr. & Comput. Eng., Illinois Univ., Urbana, IL, USA
Abstract :
The high peak-to-average power ratio (PAR) in real-baseband discrete multitone modulation (DMT) systems can significantly limit performance. Tone reservation techniques use unavailable or reserved tones to design a peak-cancelling signal that lowers the PAR of a transmit data block. Previous methods converge very slowly to a good solution. Our new active-set method converges much faster toward a minimum-PAR solution at a lower cost.
Keywords :
convergence of numerical methods; data communication; digital subscriber lines; quadrature amplitude modulation; set theory; ADSL; active-set method; baseband DMT systems; convergence; discrete multitone modulation; minimum-PAR solution; multicarrier modulation; peak-cancelling signal; peak-to-average power ratio; performance; tone reservation; transmit data block; Baseband; Costs; DSL; Digital filters; Digital modulation; Filtering; OFDM modulation; Peak to average power ratio; Quadrature amplitude modulation; Signal design;
Conference_Titel :
Signals, Systems and Computers, 2001. Conference Record of the Thirty-Fifth Asilomar Conference on
Conference_Location :
Pacific Grove, CA, USA
Print_ISBN :
0-7803-7147-X
DOI :
10.1109/ACSSC.2001.986975
