Title :
Reducing peak-to-average power ratio of multicarrier modulation by Hopfield neural network
Author :
Yamashita, Katsumi ; Ohta, M. ; Jiang, W.
Author_Institution :
Dept. of Electr. & Electron. Syst., Osaka Prefectural Univ., Sakai, Japan
fDate :
10/24/2002 12:00:00 AM
Abstract :
A novel method for the reduction of the peak-to-average power ratio of multicarrier modulation systems is proposed. The reduction problem is rewritten to a combinatorial optimisation and is solved using the Hopfield neural network (HNN), which has a simple structure and is suitable for real-time optimisation. Simulation results show that the HNN is more effective than the selected mapping method.
Keywords :
Hopfield neural nets; OFDM modulation; combinatorial mathematics; discrete Fourier transforms; optimisation; Hopfield neural network; combinatorial optimisation; cumulative distribution function; inverse discrete Fourier transform; multicarrier modulation systems; nonlinear amplifier; optimal mapping; orthogonal frequency-division multiplexing; peak-to-average power ratio reduction; rapid convergence; real-time optimisation;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20020854
