Low Complexity Compensation of Frequency Dependent I/Q Imbalance and Carrier Frequency Offset for Direct Conversion Receivers

2012 ◽  
Vol E95-B (2) ◽  
pp. 484-492 ◽  
Author(s):  
Leonardo LANANTE, Jr. ◽  
Masayuki KUROSAKI ◽  
Hiroshi OCHI
Keyword(s):  
Carrier Frequency ◽  
Carrier Frequency Offset ◽  
Low Complexity ◽  
Direct Conversion ◽  
Frequency Offset ◽  
Frequency Dependent ◽  
Direct Conversion Receivers

Robust MVDR Estimation via Polynomial Rooting for MC-CDMA Carrier Frequency Offset

2013 ◽  
Vol 284-287 ◽  
pp. 2687-2693
Author(s):  
Ing Jiunn Su ◽  
Chiao Chan Huang
Keyword(s):  
Carrier Frequency ◽  
Code Division Multiple Access ◽  
Multiple Access ◽  
Carrier Frequency Offset ◽  
Low Complexity ◽  
Frequency Offset ◽  
High Accuracy ◽  
Cdma Systems ◽  
Code Division Multiple ◽  
Polynomial Rooting

In this letter, we present a blind carrier frequency offset (CFO) estimator by exploiting the polynomial rooting technique for multicarrier-code division multiple access (MC-CDMA) systems. Relative high accuracy and low-complexity to the CFO estimation can be achieved by rooting a polynomial. Simulation results are provided for illustrating the effectiveness of the proposed blind polynomial rooting estimator.

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