TY  - CONF
KW  - Fading multipath channels; Frequency variation; Inverse fast Fourier transforms; Matrix transforms; OFDM systems; Orthogonal frequency division multiplexing systems; PAPR reduction; Peak to average power ratio; Performance Gain; Phase rotation; Phase sequence; Precoders; Precoding; QPSK modulation; Selected mapping; Simulation result; SLM based OFDM (SLM-OFDM); Sub-carriers; Transmitted signal
KW  -  Fading channels; Fast Fourier transforms; Frequency allocation; Multiplexing; Quadrature phase shift keying; Telecommunication systems
KW  -  Orthogonal frequency division multiplexing
ID  - scholars858
CY  - Kuala Lumpur
UR  - https://www.scopus.com/inward/record.uri?eid=2-s2.0-79959210208&doi=10.1109%2fAPCCAS.2010.5775064&partnerID=40&md5=86bf6b2518a87da7859400f5a1ff96b5
SN  - 9781424474561
Y1  - 2010///
A1  - Baig, I.
A1  - Jeoti, V.
SP  - 1123
TI  - A new ZCT precoding based SLM technique for PAPR reduction in OFDM systems
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. © 2010 IEEE.
EP  - 1126
N1  - cited By 9; Conference of 2010 Asia Pacific Conference on Circuit and System, APCCAS 2010 ; Conference Date: 6 December 2010 Through 9 December 2010; Conference Code:85160
AV  - none
ER  -