Paper Info
Title
A New Zct Precoding Based Slm Technique For Papr Reduction In Ofdm Systems
Abstract
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.
Year
DOI
Venue
2010
10.1109/APCCAS.2010.5775064
PROCEEDINGS OF THE 2010 IEEE ASIA PACIFIC CONFERENCE ON CIRCUIT AND SYSTEM (APCCAS)
Keywords
Field
DocType
Peak to Average Power Ratio (PAPR), Zadoff-Chu matrix Transform (ZCT), Orthogonal Frequency Division Multiplexing (OFDM), SLM based OFDM (SLM-OFDM)
Inverse,Computer science,Control theory,Communication channel,Electronic engineering,Multiplication,Fast Fourier transform,Transformation matrix,Orthogonal frequency-division multiplexing,Precoding,Phase-shift keying
Conference
Citations 
PageRank 
References 
1
0.38
13
Authors
2
Name
Order
Citations
PageRank
Imran Baig1366.56
Varun Jeoti24611.34