OFDM for Wireless Multimedia Communications
OFDM for Wireless Multimedia Communications
ML estimation of time and frequency offset in OFDM systems
IEEE Transactions on Signal Processing
A new symbol timing recovery algorithm for OFDM systems
IEEE Transactions on Consumer Electronics
A time and frequency synchronization scheme for multiuser OFDM
IEEE Journal on Selected Areas in Communications
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A novel technique to recover symbol timing of OFDM systems is proposed. The proposed technique does not require cyclic prefix, pilot signals, training symbols, or any other supplementary data, this will significantly improve the system power and bandwidth efficiency. The effect of carrier frequency offset was also considered in this work. Theoretical and simulation results have shown that symbol timing can be extracted for Eb/N0 as low as -3 dB with carrier frequency offset that equals to 50% of the subchannel spacing. System performance is investigated in both multipath and AWGN channels.