Title :
An orthogonal projection-based approach for PAR reduction in OFDM
Author :
Chen, Hong ; Pottie, Gregory J.
Author_Institution :
Dept. of Electr. Eng., California Univ., Los Angeles, CA, USA
fDate :
5/1/2002 12:00:00 AM
Abstract :
High peak-to-average power ratio (PAR) of the transmitted signal is one of the limitations to using orthogonal frequency-division multiplexing (OFDM) systems. This article presents a novel orthogonal projection-based partial transmit sequences approach that achieves significant PAR reduction at low redundancy. The proposed method is applicable to OFDM systems with a large number of subchannels. This study also for the first time provides geometrical interpretation to combining the well-known partial transmit sequences scheme.
Keywords :
OFDM modulation; sequences; OFDM; PAR reduction; computational complexity; exhaustive search; geometrical interpretation; low redundancy; orthogonal frequency-division multiplexing; orthogonal projection; partial transmit sequences; peak-to-average power ratio; subchannels; Degradation; Error correction; Error correction codes; Forward error correction; Frequency division multiplexing; Iterative algorithms; OFDM; Partial transmit sequences; Peak to average power ratio; Redundancy;
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/4234.1001653
