Performance Analysis of Cyclic Prefix and Zero Padding Equalization Technique for MIMO-OFDM System
نویسندگان
چکیده
منابع مشابه
Cyclic Prefix Optimization of OFDM System
There are many methods to reduce the multipath effects in wireless communication. Multicarrier modulation for data transmission is one of the methods to overcome the effect of Inter Symbol Interference (ISI), also known as Orthogonal Frequency Division Multiplexing (OFDM). The analysis of Bit Error Rate (BER) performance suggests, OFDM is better than Code Division Multiple Access (CDMA) which i...
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In this paper, the problem of channel equalization in modified discrete Fourier transform (MDFT)-based filter-bank multicarrier system (FBMC) is addressed. Two different system models based on padding zeros or using cyclic prefix in each transmitted block are presented. The proposed systems utilize IFFT/FFT blocks embedded in an MDFT-FBMC system. In the first one, an equalization block similar ...
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A novel method is presented to estimate the frame time and carrier frequency offset in orthogonal frequency multiplexing (OFDM) systems [1] using a variable number of time-domain pilot signals. The performance and computational intensity of the proposed system is compared to a traditional OFDM system using redundant information from the cyclic prefix [2].
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Partial Transmit Sequence is one of the distortionless methods to reduce the peak-to-average power ratio (PAPR) in Orthogonal Frequency Division Multiplexing (OFDM) systems. It is an attractive method since it provides PAPR reduction without any degradation in bit error rate (BER) performance. PTS has high computational complexity which increases exponentially with increase in subblocks. But mo...
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Due to multipath fading and inter-symbol interference, the high speed transmitted data extends to several symbol periods. Signals which travel through several paths get reflected by different objects and signals taking less direct path arrive at receiver later and are often attenuated. Traditional systems employ some improvement techniques to deal with multipath signals; one technique is to use...
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ژورنال
عنوان ژورنال: International Journal of Advanced Science and Technology
سال: 2017
ISSN: 2005-4238,2005-4238
DOI: 10.14257/ijast.2017.100.02