Title :
A frequency offset estimation processing scheme for the MC-DSSS transceiver
Author :
Mar, Jeich ; Lin, You-Rong
Author_Institution :
Dept. of Commun. Eng., Yuan-Ze Univ., Taiwan
Abstract :
The frequency offset estimation processing scheme for the multi-carrier direct sequence spread spectrum (MC-DSSS) transceiver is proposed. The design principle of the proposed frequency offset estimation processing for MC-DSSS transceiver was derived. The coarse frequency offset can be preliminarily measured by transmitting a single pulse to save the required estimation processing time. The simulation results demonstrate that the resolution of the proposed frequency offset estimation processing scheme improves with the increasing order of the QAM symbol signal. When the receiver signal-to-noise ratio (SNR) exceeds 4.2 dB, the frequency estimation accuracy of the frequency offset estimation processing using 64-QAM symbol signal is better than that using 16-QAM symbol signal.
Keywords :
code division multiple access; frequency estimation; mobile radio; quadrature amplitude modulation; spread spectrum communication; transceivers; MC-DSSS transceiver; QAM symbol signal; SNR; frequency offset estimation processing scheme; multicarrier direct sequence spread spectrum; receiver signal-to-noise ratio; Frequency estimation; Frequency measurement; Pulse measurements; Quadrature amplitude modulation; Signal processing; Signal resolution; Signal to noise ratio; Spread spectrum communication; Time measurement; Transceivers;
Conference_Titel :
Intelligent Signal Processing and Communication Systems, 2005. ISPACS 2005. Proceedings of 2005 International Symposium on
Print_ISBN :
0-7803-9266-3
DOI :
10.1109/ISPACS.2005.1595474
