TY - GEN
T1 - A new ZCT precoding based SLM technique for PAPR reduction in OFDM systems
AU - Baig, Imran
AU - Jeoti, Varun
PY - 2010/12/9
Y1 - 2010/12/9
N2 - High Peak to Average Power Ratio (PAPR) in the transmitted signal is still a very important challenge in Orthogonal Frequency Division Multiplexing (OFDM) systems. In this paper, we present a new Zadoff-Chu matrix Transform (ZCT) precoded Selected Mapping (SLM) based OFDM (SLM-OFDM) system for PAPR reduction. The proposed system is based on precoding the constellation symbols with ZCT precoder after the multiplication of phase rotation factor and before the Inverse Fast Fourier Transform (IFFT) in SLM-OFDM Systems. At the clipping probability of 10-3, simulation results show that our proposed system can reduce the PAPR up to 5.0 dB with N=64 (System subcarriers) and V=16 (Dissimilar phase sequences) for QPSK modulation. Additionally, ZCT based SLM-OFDM systems also take advantage of frequency variations of the communication channel and can also offer substantial performance gain in fading multipath channels.
AB - High Peak to Average Power Ratio (PAPR) in the transmitted signal is still a very important challenge in Orthogonal Frequency Division Multiplexing (OFDM) systems. In this paper, we present a new Zadoff-Chu matrix Transform (ZCT) precoded Selected Mapping (SLM) based OFDM (SLM-OFDM) system for PAPR reduction. The proposed system is based on precoding the constellation symbols with ZCT precoder after the multiplication of phase rotation factor and before the Inverse Fast Fourier Transform (IFFT) in SLM-OFDM Systems. At the clipping probability of 10-3, simulation results show that our proposed system can reduce the PAPR up to 5.0 dB with N=64 (System subcarriers) and V=16 (Dissimilar phase sequences) for QPSK modulation. Additionally, ZCT based SLM-OFDM systems also take advantage of frequency variations of the communication channel and can also offer substantial performance gain in fading multipath channels.
KW - Orthogonal Frequency Division Multiplexing (OFDM)
KW - Peak to Average Power Ratio (PAPR)
KW - SLM based OFDM (SLM-OFDM)
KW - Zadoff-Chu matrix Transform (ZCT)
UR - http://www.scopus.com/inward/record.url?scp=79959210208&partnerID=8YFLogxK
U2 - 10.1109/APCCAS.2010.5775064
DO - 10.1109/APCCAS.2010.5775064
M3 - Conference contribution
AN - SCOPUS:79959210208
SN - 9781424474561
T3 - IEEE Asia-Pacific Conference on Circuits and Systems, Proceedings, APCCAS
SP - 1123
EP - 1126
BT - Proceedings of the 2010 Asia Pacific Conference on Circuit and System, APCCAS 2010
T2 - 2010 Asia Pacific Conference on Circuit and System, APCCAS 2010
Y2 - 6 December 2010 through 9 December 2010
ER -