Journal ArticleDOI
BER sensitivity of OFDM systems to carrier frequency offset and Wiener phase noise
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In this contribution the transmission of M-PSK and M-QAM modulated orthogonal frequency division multiplexed (OFDM) signals over an additive white Gaussian noise (AWGN) channel is considered and the degradation of the bit error rate is evaluated.Abstract:
In this contribution the transmission of M-PSK and M-QAM modulated orthogonal frequency division multiplexed (OFDM) signals over an additive white Gaussian noise (AWGN) channel is considered. The degradation of the bit error rate (BER), caused by the presence of carrier frequency offset and carrier phase noise is analytically evaluated. It is shown that for a given BER degradation, the values of the frequency offset and the linewidth of the carrier generator that are allowed for OFDM are orders of magnitude smaller than for single carrier systems carrying the same bit rate. >read more
Citations
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Journal ArticleDOI
Performance study of residual carrier frequency offset estimation methods in OFDM WLAN systems
TL;DR: The two methods for residual carrier frequency offset estimation, based on the DFT demodulated data of OFDM data symbols at the pilot subcarriers, are compared by first-order perturbation analysis and simulation.
Proceedings ArticleDOI
Channel Estimation and Equalization in the Presence of Timing Offset in MB-OFDM Systems
Yang Li,Hlaing Minn +1 more
TL;DR: The proposed low-complexity channel estimator for each band is developed by first averaging the over-lap-added received preamble symbols within the same band and then applying time-domain least-squares method followed by the discrete Fourier transform.
Proceedings Article
Coarse frequency offset estimation using a delayed auto-quadricorrelator in OFDM-based WLANs
TL;DR: An effective frequency offset estimation scheme which widens the estimation range to one quarter the sampling frequency in an ideal condition and up to ten times the subcarrier spacing in WLAN under the noisy environment is presented.
Dissertation
Interference modeling and performance analysis of asynchronous OFDM and FBMC wireless communication systems
TL;DR: A unified framework for multicarrier interference characterization and analysis in asynchronous environments is presented and a new family of interference tables that model the correlation between a given interfering subcarrier and the victim one are proposed, not only as a function of the spectral distance separating both sub carriers but also with respect to the timing misalignment between the subcarriers holders.
Proceedings ArticleDOI
A Novel Blind Integer CFO Estimator for OFDM Systems
TL;DR: A novel blind algorithm is proposed to estimate the integer part of carrier frequency offset in orthogonal frequency divisional multiplexing (OFDM) system, and has considerably reduced computational load.
References
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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.
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A discrete multitone transceiver system for HDSL applications
TL;DR: A discrete multitone (DMT) transceiver design for high bit rate digital subscriber line (HDSL) access is presented and analyzed and is an excellent candidate for HDSL implementation.
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Performance of an RCPC-coded OFDM-based digital audio broadcasting (DAB) system
TL;DR: A static code design with unequal error protection (UEP) is presented that also takes auxiliary data services into account and emphasis is on the use of source-adapted channel coding with rate-compatible punctured convolutional (RCPC) codes.
Journal ArticleDOI
The effect of interpolation on the BER performance of narrowband BPSK and (O)QPSK on Rician-fading channels
K. Bucket,Marc Moeneclaey +1 more
TL;DR: By means of theoretical analysis, it is demonstrated that even simple interpolators, operating at only a few samples per symbol, yield BER degradations that are limited to a small fraction of a dB.
Journal ArticleDOI
Digital HDTV broadcasting over the CATV distribution system
Marc Moeneclaey,Mark Van Bladel +1 more
TL;DR: This contribution deals with the digital broadcasting of HDTV channels over the cable television (CATV) distribution system, using either single-carrier QAM or an orthogonal frequency division multiplex of many QAM carriers to represent an HDTV channel.