relation: https://khub.utp.edu.my/scholars/1844/
title: A novel Zadoff-Chu matrix transform precoded interleaved-OFDMA uplink system for 4G cellular systems: Peak to average power ratio performance
creator: Baig, I.
creator: Jeoti, V.
description: High Peak to Average Power Ratio (PAPR) is one of the major drawbacks in the Orthogonal Frequency Division Multiple Access (OFDMA) systems. In this paper, we present a novel Zadoff-Chu Matrix Transform (ZCMT) precoding based Interleaved-OFDMA uplink system with improved PAPR for the upcoming 4G cellular systems. The proposed system is based on the precoding of constellation symbols with ZCMT precoder in such a way that the system becomes Constant Envelope OFDMA (CE-OFDMA). The CE-OFDMA signal allows the Radio-Frequency (RF) high power amplifier to operate near its saturation levels, thus maximize the power efficiency. However, even 0 db PAPR or CE-OFDMA systems must contend with pulse shaping to keep out of band radiation low and to meet the transmission spectrum mask requirement. Hence, the PAPR is analyzed with Root Raised Cosine pulse shaping. Simulation results show that proposed system has better PAPR gain than the walsh-hadamard transform (WHT) precoded Interleaved-OFDMA uplink systems and the conventional Interleaved-OFDMA uplink systems.
date: 2011
type: Article
type: PeerReviewed
identifier:   Baig, I. and Jeoti, V.  (2011) A novel Zadoff-Chu matrix transform precoded interleaved-OFDMA uplink system for 4G cellular systems: Peak to average power ratio performance.  IETE Journal of Research, 57 (6).  pp. 557-562.  ISSN 03772063     
relation: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84865448822&doi=10.4103%2f0377-2063.92272&partnerID=40&md5=5bee77c9e4d1bb4a6aabb8c3fbaca2f0
relation: 10.4103/0377-2063.92272
identifier: 10.4103/0377-2063.92272