Title :
A numerical technique based estimation and correction of frequency offset for MC-CDMA systems over AWGN channels
Author :
Raju, Guntu Nooka ; Rao, B. Prabhakara
Author_Institution :
ECE., Raghu Eng. Coll., Visakhapatnam, India
Abstract :
Multi-Carrier Code Division Multiple Access (MC-CDMA) has been proposed as one of the air interface candidates for the fourth generation wireless communication systems. However, MC-CDMA systems suffer a lot of performance degradation due to carrier frequency offsets. In this paper proposes a Numerical Technique based on the secant method for blind Maximum-Likelihood (ML) estimation of carrier frequency offset in MC-CDMA Systems over Additive White Gaussian Noise channels (AWGN). The proposed technique is characterized by low complexity and fast convergence while maintaining the estimation accuracy.
Keywords :
4G mobile communication; AWGN channels; code division multiple access; frequency estimation; maximum likelihood estimation; AWGN channel; MC-CDMA system; additive white Gaussian noise channel; blind ML estimation; blind maximum-likelihood estimation; carrier frequency offset correction; fourth generation wireless communication system; multicarrier code division multiple access system; numerical technique based estimation; secant method; Frequency estimation; Maximum likelihood estimation; Multicarrier code division multiple access; OFDM; Wireless communication; AWGN channel; MC-CDMA; ML-estimation; Numerical technique; earner frequency offset (CFO);
Conference_Titel :
Instrumentation & Measurement, Sensor Network and Automation (IMSNA), 2012 International Symposium on
Conference_Location :
Sanya
Print_ISBN :
978-1-4673-2465-6
DOI :
10.1109/MSNA.2012.6324515
