Journal ArticleDOI
Transmission techniques for digital terrestrial TV broadcasting
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TLDR
The authors discuss the potential of OFDM signaling, with its limitations and inherent problems, as well as another potential technique that has so far been overlooked: single-carrier transmission with frequency- domain equalization, and introduces coded-OFDM (COFDM), which makes use of channel coding and frequency-domain interleaving.Abstract:
The authors discuss the potential of OFDM signaling, with its limitations and inherent problems, as well as another potential technique that has so far been overlooked: single-carrier transmission with frequency-domain equalization. The carrier synchronisation issue is dealt with before the authors introduce coded-OFDM (COFDM), which makes use of channel coding and frequency-domain interleaving. >read more
Citations
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Journal ArticleDOI
VQ Digital Video Transmission through Coaxial Cable using OFDM
TL;DR: OfDM modulation is studied for HDTV transmission on a 6 MHz bandwidth channel by using coaxial cable as a transmission medium and the Vector Quantization (VQ) technique is found to be very robust against channel errors.
Proceedings ArticleDOI
An equalization technique for OFDM and MC-CDMA in a time-varying multipath fading channels
TL;DR: A simple frequency domain equalizer which can compensate the effect of time-variation in a multipath fading channel is proposed by taking into account only the ICI terms significantly affecting the error performance and by modifying the previous frequency-domain equalization techniques.
Proceedings ArticleDOI
Comparison of preamble structures for burst frequency synchronization
TL;DR: A near-optimum frequency estimation algorithm with scalable lock-in range is proposed in conjunction with a reduced-overhead synchronization preamble, the so-called sandamble in an orthogonal frequency-division multiplexing (OFDM) system.
Proceedings ArticleDOI
Estimation of channel statistics for iterative detection of OFDM signals
Michele Morelli,Luca Sanguinetti +1 more
TL;DR: Simulations indicate that the EM detector employing the estimated SNR and channel statistics has better performance than other schemes operating in a mismatched mode, and the performance loss with respect to a system with perfect channel knowledge is negligible at SNR values of practical interest.
Proceedings ArticleDOI
An OFDM turbo equalizer for scattered pilot signals in multipath environments with delay difference greater than guard interval
TL;DR: Computer simulation demonstrates the effectiveness of the turbo equalizer with precise channel estimation in the scattered pilot OFDM system specified by the digital terrestrial television broadcasting (DTTB) standard.
References
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Journal ArticleDOI
Multicarrier modulation for data transmission: an idea whose time has come
TL;DR: The general technique of parallel transmission on many carriers, called multicarrier modulation (MCM), is explained, and the performance that can be achieved on an undistorted channel and algorithms for achieving that performance are discussed.
Journal ArticleDOI
Analysis and Simulation of a Digital Mobile Channel Using Orthogonal Frequency Division Multiplexing
TL;DR: The analysis and simulation of a technique for combating the effects of multipath propagation and cochannel interference on a narrow-band digital mobile channel using the discrete Fourier transform to orthogonally frequency multiplex many narrow subchannels, each signaling at a very low rate, into one high-rate channel is discussed.
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.
Journal ArticleDOI
Performance of an Efficient Parallel Data Transmission System
TL;DR: A parallel quadrature AM data transmission system with a number of overlapping channels, each carrying a signaling rateb, spacedb/2apart in frequency appears to be a promising technique for achieving good performance at high information rates over bandlimited dispersive transmission media.