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
Decision Feedback Frequency Offset Estimation and Tracking for General ICI Self-Cancellation Based OFDM Systems
TL;DR: This work proposes a simple decision feedback scheme based on the general ICI self-cancellation scheme to perform estimation and tracking of the carrier frequency offsets and shows that this fine-tuned estimate improved the system performance greatly.
Proceedings ArticleDOI
On the flexible 5G dense deployment air interface for mobile broadband
TL;DR: Harmonized OFDM concept, in which the cyclic prefix length and subcarrier spacing are functions of carrier frequency while FFT size and base clock remain constant is discussed, enabling low latency, flexible UL/DL ratio switching and high spectral efficiency with low cost transceiver.
Proceedings ArticleDOI
Impact of Phase Noise on OFDM and SC-CP
TL;DR: Analytical results show that OFDM is found to be slightly less affected than SC-CP in both flat channels and frequency selective channels, and it is shown also that CPE is the dominate impact if the PN cut-off frequency is smaller than the subcarrier spacing.
Journal ArticleDOI
Code-Aided Channel Tracking and Frequency Offset-Phase Noise Elimination for Multicarrier Systems
TL;DR: A low complexity estimator based on the expectation-maximization (EM) algorithm is derived and it turns out that the estimator receives soft information from the channel decoder to refine the CFO, PN, and channel estimates.
Journal ArticleDOI
Frequency offset estimation for OFDM in wireless communications
TL;DR: Three new methods to estimate the integer part of frequency offset are proposed, simulation results show its robustness to mitigate the multi-path effect and its enlarged estimation range for frequency offset.
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
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.