Title :
Perfect DFT sequences transformed into orthogonal sequences
Author :
Pereira, João S. ; Silva, Henrique J A da
Author_Institution :
DEI, ESTG do Inst. Politec. de Leiria, Leiria, Portugal
Abstract :
In this paper, we present a method and a code generator to transform perfect DFT (discrete Fourier transform) sequences into orthogonal sequences and into bipolar codes, with good correlation properties. These new sequences or codes produce a low peak-to-average power ratio (PAPR) and a low error probability in a code-division multiple access (CDMA) system. All these codes can also be useful in a pre-coded version of an orthogonal frequency-division multiplexing (OFDM) system.
Keywords :
OFDM modulation; code division multiple access; discrete Fourier transforms; error statistics; precoding; CDMA system; DFT sequence; OFDM system; PAPR; bipolar code; code generator; code-division multiple access system; discrete Fourier transform sequence; error probability; orthogonal frequency-division multiplexing system; orthogonal sequence; peak-to-average power ratio; Correlation; Discrete Fourier transforms; Generators; Gold; Multiaccess communication; Peak to average power ratio; CDMA; DFT; OFDM; Perfect DFT Sequences;
Conference_Titel :
EUROCON - International Conference on Computer as a Tool (EUROCON), 2011 IEEE
Conference_Location :
Lisbon
Print_ISBN :
978-1-4244-7486-8
DOI :
10.1109/EUROCON.2011.5929376
