A frequency and symbol synchronization system for OFDM signals: architecture and simulation results

A data-aided frequency and symbol synchronization scheme for M-QAM OFDM signals is suggested. At first, the phase discriminator (PD) and frequency discriminator (FD) for, respectively, the symbol and frequency synchronization loop are described. Second, the transfer function and design parameters of the loop filters are provided. The acquisition and tracking performance of the synchronization system are evaluated using simulation for a 4-PSK signal constellation. The cases of additive white Gaussian noise (AWGN) and frequency and time selective multipath Rayleigh channels are separately tested.

[1]  Hikmet Sari,et al.  Baseband Equalization and Carrier Recovery in Digital Radio Systems , 1987, IEEE Trans. Commun..

[2]  Antoine Chouly,et al.  Maximum likelihood frequency detectors for orthogonal multicarrier systems , 1993, Proceedings of ICC '93 - IEEE International Conference on Communications.

[3]  Leonard J. Cimini,et al.  Analysis and Simulation of a Digital Mobile Channel Using Orthogonal Frequency Division Multiplexing , 1985, IEEE Trans. Commun..

[4]  Damien Castelain,et al.  Digital sound broadcasting to mobile receivers , 1989 .

[5]  F. Daffara,et al.  A new frequency detector for orthogonal multicarrier transmission techniques , 1995, 1995 IEEE 45th Vehicular Technology Conference. Countdown to the Wireless Twenty-First Century.

[6]  Harald Bochmann,et al.  Digital multicarrier-transmission of audio signals over mobile radio channels , 1992, Eur. Trans. Telecommun..

[7]  John M. Cioffi,et al.  Performance Evaluation of a Multichannel Transceiver System for ADSL and VHDSL Services , 1991, IEEE J. Sel. Areas Commun..

[8]  S. Weinstein,et al.  Data Transmission by Frequency-Division Multiplexing Using the Discrete Fourier Transform , 1971 .

[9]  Paul H. Moose,et al.  A technique for orthogonal frequency division multiplexing frequency offset correction , 1994, IEEE Trans. Commun..

[10]  G. Santella,et al.  A hybrid analytical-simulation procedure for performance evaluation in M-QAM-OFDM schemes in presence of nonlinear distortions , 1998 .

[11]  G. Santella.  OFDM with guard interval and sub-channel equalization in a 2-resolution transmission scheme for digital television broadcasting , 1994, Proceedings of ICC/SUPERCOMM'94 - 1994 International Conference on Communications.

[12]  Hikmet Sari,et al.  Transmission techniques for digital terrestrial TV broadcasting , 1995, IEEE Commun. Mag..

[13]  E. Parzen.  1. Random Variables and Stochastic Processes , 1999 .

[14]  John G. Proakis,et al.  Digital Communications , 1983 .

[15]  Richard D. Gitlin,et al.  Adaptive carrier recovery systems for digital data communications receivers , 1989, IEEE J. Sel. Areas Commun..

[16]  M. Alard,et al.  Principles of Modulation and Channel Coding for Digital Broadcasting for Mobile Receivers , 1987 .

[17]  C. Rapp,et al.  Effects of HPA-Nonlinearity on a 4-DPSK/OFDM-Signal for a Digital Sound Broadcasting System. , 1991 .

[18]  G. A. Halls.  HIPERLAN: the High Performance Radio Local Area Network standard , 1994 .