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:Â
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
A Digital Golay-MPIC Time Domain Equalizer for SC/OFDM Dual-Modes at 60 GHz Band
TL;DR: A digital time domain equalizer (TDE) for 60 GHz radio frequency transmission systems is presented and adopts Golay sequence aided one-shot channel estimation and modified multi-path interference cancellation (MPIC) equalization to improve the performance.
Patent
Systems and Methods for Off Track Error Recovery
Ming Jin,Shaohua Yang +1 more
TL;DR: In this paper, a data recovery circuit is described that includes a controller, a data processing circuit, a selector circuit, and a combining circuit, where the combining circuit is operable to combine the first data set with at least the second data set to yield the combined data set.
Journal ArticleDOI
Spectrum modelling of OFDM signals for WLAN
Chunming Liu,Fu Li +1 more
TL;DR: In this article, the authors derived the power spectral density (PSD) of the orthogonal frequency division multiplexing (OFDM) signals using an IEEE 802.11a example.
Proceedings ArticleDOI
Constant-envelope orthogonal frequency division multiplexing modulation
Char-Dir Chung,Shih-Ming Cho +1 more
TL;DR: In this article, a constant envelope signaling approach for orthogonal frequency division multiplexing (OFDM) modulation is proposed, which employs phase modulation in conjunction with signal clipping to endow the transmitted signal with the constant envelope without destroying the required transmission characteristic associated with OFDM.
Proceedings ArticleDOI
An EM-based estimation of OFDM signals
TL;DR: An EM-based algorithm to efficiently detect transmitted data in an OFDM system as well as estimating the channel impulse response (CIR) is proposed, and the bit error rate (BER) can be significantly reduced by this algorithm.
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.