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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Patent
Resource allocation for shared signaling channels
Aamod Khandekar,Alexei Gorokhov +1 more
TL;DR: A shared signaling channel can be used in an Orthogonal Frequency Division Multiple Access (OFDMA) communication system to provide signaling, acknowledgement, and power control messages to access terminals within the system as discussed by the authors.
Journal ArticleDOI
EM-based channel estimation algorithms for OFDM
TL;DR: Three EM-based algorithms to efficiently estimate the channel impulse response or channel frequency response of an orthogonal frequency division multiplexing system operating on a channel with multipath fading and additive white Gaussian noise are proposed.
Proceedings ArticleDOI
Channel and noise variance estimation and tracking algorithms for unique-word based single-carrier systems
TL;DR: Novel algorithms for estimating and tracking the channel and noise variance in SC systems are proposed by exploiting a unique word (UW) extension and benefit from low complexity and lend themselves to SC systems employing frequency-domain equalization at the receiver.
Journal ArticleDOI
Cyclic prefixed single carrier transmission with SFBC over mobile wireless channels
TL;DR: It is shown that the proposed system significantly outperforms the space-time block-coded SC-FDE system over fast-fading channels while providing lower computational complexity than orthogonal frequency division multiplexing combined with the SFBC.
Journal ArticleDOI
Cyclic prefixed single carrier and multicarrier transmission: bit rate comparison
TL;DR: It is analytically prove that the bit rate achieved with multicarrier transmission with adaptive modulation is always higher than that obtained with single carrier transmission when a one-tap frequency domain equalizer is used.
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.