Parameter Estimation and Error Reduction for OFDM-Based WLANs
IEEE Transactions on Mobile Computing
Multi-user Synchronisation in ad hoc OFDM-based Wireless Personal Area Networks
Wireless Personal Communications: An International Journal
EURASIP Journal on Wireless Communications and Networking
Robust Phase Tracking for High Capacity Wireless Multimedia Data Communication Networks
ICCS '07 Proceedings of the 7th international conference on Computational Science, Part IV: ICCS 2007
Robust OFDM timing synchronisation in multipath channels
EURASIP Journal on Wireless Communications and Networking
New Simultaneous Timing and Frequency Synchronization Utilizing Matched Filters for OFDM Systems
IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences
Time and frequency synchronisation in 4G OFDM systems
EURASIP Journal on Wireless Communications and Networking - Special issue on synchronization in wireless communications
Joint time, frequency and sampling clock synchronization for OFDM-based systems
WCNC'09 Proceedings of the 2009 IEEE conference on Wireless Communications & Networking Conference
A new sampling clock synchronization method in OFDM system
WiCOM'09 Proceedings of the 5th International Conference on Wireless communications, networking and mobile computing
Joint synchronization using cyclic property
ICC'09 Proceedings of the 2009 IEEE international conference on Communications
Low-complexity all-digital sample clock dither for OFDM timing recovery
IEEE Transactions on Very Large Scale Integration (VLSI) Systems
Block synchronization algorithms for UWB-OFDM systems
Digital Signal Processing
Multicarrier communications based on the affine fourier transform in doubly-dispersive channels
EURASIP Journal on Wireless Communications and Networking
An Investigation on the Sensitivity of Wavelet Packet Modulation to Time Synchronization Error
Wireless Personal Communications: An International Journal
Blind synchronization scheme using the conjugate characters of the OFDM BPSK-modulated symbol
Digital Signal Processing
Wireless Personal Communications: An International Journal
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Orthogonal frequency division multiplexing (OFDM) is an effective modulation technique for high-rate and high-speed transmission over frequency selective fading channels. However, OFDM systems can be extremely sensitive and vulnerable to synchronization errors. In this paper, we present a scheme for performing timing recovery that includes symbol synchronization and sampling clock synchronization in OFDM systems. The scheme is based on pilot subcarriers. In the scheme, we use a path time delay estimation method to improve the accuracy of the correlation-based symbol synchronization methods, and use a delay-locked loop (DLL) to do the sampling clock synchronization. It is shown that by using this scheme, the mean square values of the symbol timing estimation error can be decreased by several orders of magnitude compared to the common correlation methods in both the AWGN and multipath fading channels. In addition, the scheme can track the symbol timing drift caused by the sampling clock frequency offsets