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Simplified approach for symbol error rate analysis of SC‐FDMA scheme over Rayleigh fading channel
Vinay Kumar Trivedi,Madhusudan Kumar Sinha,Preetam Kumar 한국전자통신연구원 2018 ETRI Journal Vol.40 No.4
In this paper, we present a comprehensive analytical study of the symbol error rate (SER) of single‐carrier frequency‐division multiple access (SC‐FDMA) with zero‐forcing frequency domain equalization (ZF‐FDE) over a Rayleigh fading channel. SC‐FDMA is considered as a potential waveform candidate for fifth‐generation (5G) radio access networks (RANs). First, the NC fold convolution of the noise distribution of an orthogonal frequency‐division multiplexing (OFDM) system is computed for each value of the signal‐to‐noise ratio (SNR) in order to determine the noise distribution of the SC‐FDMA system. NC is the number of subcarriers assigned to a user or the size of the discrete Fourier transform (DFT) precoding. Here, we present a simple alternative method of calculating the SER by simplifying the NC fold convolution using time and amplitude scaling properties. The effects of the NC fold convolution and SNR over the computation of the SER of the SC‐FDMA system has been separated out. As a result, the proposed approach only requires the computation of the NC fold convolution once, and it is used for different values of SNR to calculate the SER of SC‐FDMA systems.
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Traditional and ayurvedic foods of Indian origin
Preetam Sarkar,Lohith Kumar DH,Chanda Dhumal,Shubham Subrot Panigrahi,Ruplal Choudhary 한국식품연구원 2015 Journal of Ethnic Foods Vol.2 No.3
The Ayurveda contains a wealth of knowledge on health sciences. Accordingly traditional foods and their dietary guidelines are prescribed in Ayurveda. There is so much similarity in ayurvedic dietetics and traditional foods that many of the traditional health foods in India can be called ayurvedic foods. This review article introduces the concepts of ayurvedic health foods in India and describes several traditional heath foods across various regions of India. Recommended dietary guidelines according to age and health condition of the consumer, and seasonal considerations are presented for each of the traditional health foods of India. In the era of globalization of the population and international food trading, health conscious citizens around the globe will benefit from the wealth of knowledge on traditional Indian and ayurvedic health foods of Indian origin.
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