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Estimation of carrier frequency offset for FBMC/OQAM by using modified Kalman filtering
International Journal of Communication Systems ( IF 1.7 ) Pub Date : 2020-08-07 , DOI: 10.1002/dac.4579
S.N. Nisha Rani 1 , B. Sridevi 2
International Journal of Communication Systems ( IF 1.7 ) Pub Date : 2020-08-07 , DOI: 10.1002/dac.4579
S.N. Nisha Rani 1 , B. Sridevi 2
Affiliation
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Filter bank multicarrier (FBMC) based on offset quadrature amplitude modulation (OQAM) is regarded as the prospective system for mobile communication. To utilize the potential of the system, the issues like carrier frequency offset have to be investigated extensively. The modulations in the multicarrier system draw a great interest among researchers and engineers in the telecommunication field. Despite the OFDM advantages, significant disadvantages in the system enable researches to approach into efficiently evolved FBMC system. In this paper, the detrimental effects caused by carrier frequency offset on the received signal is considered. Carrier Frequency Offset (CFO) compensation has been effectively undertaken by modified Kalman filtering. The compensation technique not only depends on the specific FBMC modification but also influenced by the selected receiver. A comprehensive analysis of the frequency offset response under three conditions (without offset, with offset, and the compensated samples) has been performed in the proposed system with performance measures as bit error rate (BER) and signal‐to‐noise ratio. 9 CFO compensation is analyzed by varying the channel characteristics (additive white Gaussian noise [AWGN] and Rayleigh Fading) and subcarrier filtering (prototype filter, Gaussian filter, and root‐raised coefficients). From the overall analysis, it is observed that the BER varies from 0.1 to 0.001.
中文翻译:
使用改进的卡尔曼滤波估计FBMC / OQAM的载波频率偏移
基于偏移正交幅度调制(OQAM)的滤波器组多载波(FBMC)被视为移动通信的预期系统。为了利用系统的潜力,必须广泛研究像载波频率偏移这样的问题。多载波系统中的调制引起了电信领域研究人员和工程师的极大兴趣。尽管有OFDM的优点,但系统中的明显缺点使研究能够进入有效发展的FBMC系统。本文考虑了载波频率偏移对接收信号的不利影响。载波频率偏移(CFO)补偿已通过改进的卡尔曼滤波有效地进行。补偿技术不仅取决于特定的FBMC修改,而且还受所选接收器的影响。在拟议的系统中,已对三种情况(无偏移,有偏移和补偿采样)下的频率偏移响应进行了综合分析,并采用了误码率(BER)和信噪比等性能指标。9 CFO补偿是通过改变信道特性(加性高斯白噪声[AWGN]和瑞利衰落)和子载波滤波(原型滤波器,高斯滤波器以及均方根系数)来分析的。从整体分析可以看出,BER在0.1到0.001之间变化。和补偿样本)已在建议的系统中执行,并采用了误码率(BER)和信噪比等性能指标。9 CFO补偿是通过改变信道特性(加性高斯白噪声[AWGN]和瑞利衰落)和子载波滤波(原型滤波器,高斯滤波器以及均方根系数)来分析的。从整体分析可以看出,BER在0.1到0.001之间变化。和补偿样本)已在建议的系统中执行,并采用了误码率(BER)和信噪比等性能指标。9 CFO补偿是通过改变信道特性(加性高斯白噪声[AWGN]和瑞利衰落)和子载波滤波(原型滤波器,高斯滤波器以及均方根系数)来分析的。从整体分析可以看出,BER在0.1到0.001之间变化。
更新日期:2020-10-05
中文翻译:
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使用改进的卡尔曼滤波估计FBMC / OQAM的载波频率偏移
基于偏移正交幅度调制(OQAM)的滤波器组多载波(FBMC)被视为移动通信的预期系统。为了利用系统的潜力,必须广泛研究像载波频率偏移这样的问题。多载波系统中的调制引起了电信领域研究人员和工程师的极大兴趣。尽管有OFDM的优点,但系统中的明显缺点使研究能够进入有效发展的FBMC系统。本文考虑了载波频率偏移对接收信号的不利影响。载波频率偏移(CFO)补偿已通过改进的卡尔曼滤波有效地进行。补偿技术不仅取决于特定的FBMC修改,而且还受所选接收器的影响。在拟议的系统中,已对三种情况(无偏移,有偏移和补偿采样)下的频率偏移响应进行了综合分析,并采用了误码率(BER)和信噪比等性能指标。9 CFO补偿是通过改变信道特性(加性高斯白噪声[AWGN]和瑞利衰落)和子载波滤波(原型滤波器,高斯滤波器以及均方根系数)来分析的。从整体分析可以看出,BER在0.1到0.001之间变化。和补偿样本)已在建议的系统中执行,并采用了误码率(BER)和信噪比等性能指标。9 CFO补偿是通过改变信道特性(加性高斯白噪声[AWGN]和瑞利衰落)和子载波滤波(原型滤波器,高斯滤波器以及均方根系数)来分析的。从整体分析可以看出,BER在0.1到0.001之间变化。和补偿样本)已在建议的系统中执行,并采用了误码率(BER)和信噪比等性能指标。9 CFO补偿是通过改变信道特性(加性高斯白噪声[AWGN]和瑞利衰落)和子载波滤波(原型滤波器,高斯滤波器以及均方根系数)来分析的。从整体分析可以看出,BER在0.1到0.001之间变化。