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
Two novel iterative joint frequency-offset and channel estimation methods for OFDMA uplink
TL;DR: Two iterative estimators are developed that are not only better in estimation performance, convergence rate, and complexity, but also more robust to the number of active uplink users than the existing method while requiring only one OFDM training symbol and no restriction of the data subcarrier assignment scheme.
Proceedings ArticleDOI
Joint frame synchronization and frequency offset estimation in OFDM system
Zhongshan Zhang,Ming Zhao +1 more
TL;DR: The theoretical variance error lower bound for the frequency offset tracking algorithm is derived in this paper and can be further divided into preacquisition and fine acquisition.
Journal ArticleDOI
Phase Noise in MIMO Systems: Bayesian Cramér–Rao Bounds and Soft-Input Estimation
TL;DR: Numerical results indicate that by employing the proposed phase tracking approach, the bit-error rate performance of a MIMO system affected by phase noise can be significantly improved and simulation results indicates that the proposedphase noise estimation scheme allows for application of higher order modulations and larger numbers of antennas in MIMo systems that employ imperfect oscillators.
Journal ArticleDOI
Comparison of Frequency Offset and Timing Offset Effects on the Performance of SC-FDE and OFDM Over UWB Channels
Yue Wang,Xiaodai Dong +1 more
TL;DR: It is shown through analysis that although SC-FDE is reasonably robust to a constant timing offset, it is fairly sensitive to random timing jitter.
Journal ArticleDOI
On the effects of receiver windowing on OFDM performance in the presence of carrier frequency offset
Norman C. Beaulieu,Peng Tan +1 more
TL;DR: The BTRC windowing gives the smallest BER among the five windowing functions considered for small to medium values of pulse roll-off factor, however, the Franks windowing or SOCW windowing shows better BER performance when the roll- off factor approaches one.
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.
Proceedings ArticleDOI
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.