A new ZCT precoding based SLM technique for PAPR reduction in OFDM systems

Imran Baig*, Varun Jeoti

*Awdur cyfatebol y gwaith hwn

Allbwn ymchwil: Pennod mewn Llyfr/Adroddiad/Trafodion CynhadleddCyfraniad mewn cynhadleddadolygiad gan gymheiriaid

9 Dyfyniadau (Scopus)

Crynodeb

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.

Iaith wreiddiolSaesneg
TeitlProceedings of the 2010 Asia Pacific Conference on Circuit and System, APCCAS 2010
Tudalennau1123-1126
Nifer y tudalennau4
Dynodwyr Gwrthrych Digidol (DOIs)
StatwsCyhoeddwyd - 9 Rhag 2010
Cyhoeddwyd yn allanolIe
Digwyddiad2010 Asia Pacific Conference on Circuit and System, APCCAS 2010 - Kuala Lumpur, Malaisia
Hyd: 6 Rhag 20109 Rhag 2010

Cyfres gyhoeddiadau

EnwIEEE Asia-Pacific Conference on Circuits and Systems, Proceedings, APCCAS

Cynhadledd

Cynhadledd2010 Asia Pacific Conference on Circuit and System, APCCAS 2010
Gwlad/TiriogaethMalaisia
DinasKuala Lumpur
Cyfnod6/12/109/12/10

Dyfynnu hyn