Analysis of Carrier Frequency Selective Offset Estimation - Using Zero-IF and ZCZ In MC-DS-CDMA
Venkatachalam. Karthikeyan 1 and Jeganathan. Vijayalakshmi.V 2
1. Department of ECE, SVSCE, Coimbatore, India
2. Department of EEE, SKCET, Coimbatore, India
2. Department of EEE, SKCET, Coimbatore, India
Abstract—A new method for frequency synchronization based upon Zero-Intermediate Frequency (Zero-IF) receiv-er and characteristics of the received signal’s power spec-trum for MC-DSCDMA-Uplink system is proposed in this paper. In addition to this, employing Zero Correlation Zone (ZCZ) sequences, designed specifically for quasi-synchronous uplink transmissions, is proposed to exploit frequency and temporal diversity in frequency-selective block-fading channels. The variance for Carrier Frequency Offset (CFO) estimators of MC-DS-CDMA Uplink is com-pared with that of an OFDM system to estimate the CFO. Our study and results show that the MC-DS-CDMA system is outperforming the OFDM method.
Index Terms—Carrier Frequency Offset (CFO), Zero-Intermediate Frequency (Zero-IF), Multi-Carrier Code Division Multiple Access
Cite: Venkatachalam. Karthikeyan and Jeganathan. Vijayalakshmi.V, "Analysis of Carrier Frequency Selective Offset Estimation - Using Zero-IF and ZCZ In MC-DS-CDMA," International Journal of Electronics and Electrical Engineering, Vol. 1, No. 3, pp. 171-175, September 2013. doi: 10.12720/ijeee.1.3.171-175
Index Terms—Carrier Frequency Offset (CFO), Zero-Intermediate Frequency (Zero-IF), Multi-Carrier Code Division Multiple Access
Cite: Venkatachalam. Karthikeyan and Jeganathan. Vijayalakshmi.V, "Analysis of Carrier Frequency Selective Offset Estimation - Using Zero-IF and ZCZ In MC-DS-CDMA," International Journal of Electronics and Electrical Engineering, Vol. 1, No. 3, pp. 171-175, September 2013. doi: 10.12720/ijeee.1.3.171-175
Array