An Introduction to Spread-Spectrum Communications
An Introduction to Spread-Spectrum Communications
The IEEE 802.11 Handbook: A Designer's Companion
The IEEE 802.11 Handbook: A Designer's Companion
Wireless OFDM Systems: How to Make Them Work?
Wireless OFDM Systems: How to Make Them Work?
OFDM for Wireless Communications Systems
OFDM for Wireless Communications Systems
Performance evaluation of a new BPSK-OFDM timing estimation algorithm
Wireless Personal Communications: An International Journal
A comparison of pilot-aided channel estimation methods for OFDMsystems
IEEE Transactions on Signal Processing
ML estimation of time and frequency offset in OFDM systems
IEEE Transactions on Signal Processing
Timing and delay spread estimation scheme in OFDM systems
IEEE Transactions on Consumer Electronics
Orthogonal frequency division multiplexing: a multi-carrier modulation scheme
IEEE Transactions on Consumer Electronics
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In this paper, based on the correlation properties of the pseudo-random (PN) code, a scheme is proposed to achieve frame synchronization in the OFDM system. According to the estimated path delay time, the channel impulse response could be obtained with the proposed scheme. Then, based on the estimated channel response, the signal could be compensated through the one-tap frequency domain equalizer. Simulation results of the proposed frame synchronization scheme and channel estimation are presented in the paper. The miss probability of frame timing with the proposed frame synchronization scheme performs better than that with the moving average scheme and Beek's scheme. Besides, in the channel estimation, the estimator mean square error with the proposed algorithm is better than that with the algorithm using frequency domain pilots. Moreover, with the signal compensation by the estimated channel information, the frequency domain one-tap equalizer is used to improve the system performance.