Proceedings ArticleDOI
Influence of nonlinear HPA on trellis-Coded OFDM for terrestrial broadcasting of digital HDTV
E. Bogenfeld,R. Valentin,K. Metzer,W. Sauer-Greff +3 more
- pp 1433-1438
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TLDR
The paper investigates a system proposal for transmitting digital high-definition television (HDTV) signals over terrestrial UHF channels by comparing uncoded 16-QAM and trellis-coded 32-CROSS modulation in conjunction with an orthogonal frequency division multiplexing (OFDM) procedure.Abstract:
The paper investigates a system proposal for transmitting digital high-definition television (HDTV) signals over terrestrial UHF channels The authors compare uncoded 16-QAM and trellis-coded 32-CROSS modulation in conjunction with an orthogonal frequency division multiplexing (OFDM) procedure The simulations show the influence of the nonlinear distortions introduced by the high-power amplifier (HPA) of the transmitter As HPA the authors consider a travelling wave tube amplifier (TWTA) and a solid state power amplifier (SSPA) The characteristics of the channel for HDTV in a single frequency network (SFN) is simulated using a time-invariant multipath model >read more
Citations
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Journal ArticleDOI
A bibliography on nonlinear system identification
TL;DR: The present bibliography represents a comprehensive list of references on nonlinear system identification and its applications in signal processing, communications, and biomedical engineering.
Journal ArticleDOI
A hybrid analytical-simulation procedure for performance evaluation in M-QAM-OFDM schemes in presence of nonlinear distortions
G. Santella,F. Mazzenga +1 more
TL;DR: In this article, a hybrid analytical-simulation procedure for performance evaluation in M-ary quadrature amplitude modulation (M-QAM) orthogonal frequency division multiplexing (OFDM) digital radio systems in the presence of nonlinear distortions caused by high-power amplifiers (HPAs) is presented.
Journal ArticleDOI
An application of MMSE predistortion to OFDM systems
M.-G. Di Benedetto,P. Mandarini +1 more
TL;DR: Orthogonal frequency division multiplexing (OFDM) particularly suffers from the presence of nonlinearities since the signal amplitude is Rayleigh distributed, so the degradation introduced by the nonlinear amplifier in the transmitter can be significantly reduced by using an analog cubic minimum mean square error predistorter.
Journal ArticleDOI
PAPR reduction using soft clipping and ACI rejection in OFDM system
TL;DR: This work proposes a new PAPR reduction method using soft clipping and filtering, which lowers power consumption and is more efficient than the conventional hard clipping method.
Journal ArticleDOI
Hardware nonlinearities in digital TV broadcasting using OFDM modulation
TL;DR: The paper investigates the in-band and out-of-band behaviour of a 64QAM-OFDM system under various nonlinear devices and shows that the inherent signal clipping in the IFFT processors with a limited word length reduces the required RF amplifier output backoff (OBO) where adjacent channel interference is the limiting factor.
References
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Journal ArticleDOI
Channel coding with multilevel/phase signals
TL;DR: A coding technique is described which improves error performance of synchronous data links without sacrificing data rate or requiring more bandwidth by channel coding with expanded sets of multilevel/phase signals in a manner which increases free Euclidean distance.
Journal ArticleDOI
Data Transmission by Frequency-Division Multiplexing Using the Discrete Fourier Transform
Stephen B. Weinstein,P. Ebert +1 more
TL;DR: The Fourier transform data communication system is described and the effects of linear channel distortion are investigated and a differential phase modulation scheme is presented that obviates any equalization.
Journal ArticleDOI
Frequency-Independent and Frequency-Dependent Nonlinear Models of TWT Amplifiers
TL;DR: A frequencydependent quadrature model is proposed whose parameters are obtainable from single-tone measurements and is shown to fit measured data very well.
Effects of HPA-Nonlinearity on a 4-DPSK/OFDM-Signal for a Digital Sound Broadcasting System.
TL;DR: In this paper, the influence of the nonlinear distortions introduced by the high power amplifier (HPA) of the transmitter is examined, and the degradation in power efficiency due to intermodulation effects and backoff operating, as well as spectral degradations are investigated.
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