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Coherent and Semi-Coherent Correlation Detection of DSSS-FSK Signals for Low-Power/Low-Cost Wireless Communication  

Park Hyung Chul (Dept. of Information, Communication, and Computer Engineering, Hanbat National University)
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Abstract
For the low power and low cost transceivers, direct sequence spread spec01m frequency-shift keying (DSSS-FSK) is proposed. A transmitter of the DSSS-FSK signal can be implemented by a simple direct modulation using the phase locked loop. Since the DSSS-FSK signal has negligible power around the carrier frequency, low cost direct conversion receiver can be used. Optimum coherent and semi-coherent correlation detection methods for the DSSS-FSK signal are proposed and analyzed. Segmented semi-coherent correlation detection method is proposed to improve the bit error rate performance in the large carrier frequency offset.
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Times Cited By KSCI : 1  (Citation Analysis)
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