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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Proceedings ArticleDOI
Blind Feedforward Frequency Estimation for OFDM Signals Transmitted over Multipath Fading Channels
F.Z. Merli,Giorgio M. Vitetta +1 more
TL;DR: A novel feedforward frequency synchronizer for orthogonal frequency division multiplexing (OFDM) signals transmitted over multipath fading channels is described, based on maximum likelihood (ML) estimation techniques and assumes an approximate statistical knowledge of the communication channel.
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Robust synchronization and channel estimation for the OFDM-based WLAN systems
TL;DR: Novel synchronization and channel estimation schemes are proposed for the OFDM-based WLAN systems and show that the proposed schemes exhibit good performances and are robust in harsh fading channel environments and low signal-to-noise ratio (SNR) conditions.
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Intercarrier interference self-cancellation for space-time-frequency MIMO-OFDM system
S.K.S. Yusof,A.I.A. Zamani +1 more
TL;DR: The purpose of this paper is to reduce ICI using ICI self-cancellation in MIMO-OFDM system by data allocation in space-time-frequency (STF) to reduce peak-to-average power ratio (PAPR).
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A Real-Time Digital Baseband Channel Emulation System for OFDM Communications
TL;DR: The proposed emulator consists of several wireless channel effects and RF front-end impairments that are suitable for most OFDM wireless systems and implemented on FPGA.
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Practical Implementation of Cloud Initialization Procedure for Wireless Physical Layer Network Coding Clouds
TL;DR: A Software Defined Radio (SDR) implementation based on an OFDM physical layer of one of the algorithms that equips each network node with all the information necessary to start the WPLNC communication is presented.
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.