2021 Issues


IJAET ISSN (Online) : 2455-0523
Title    :   A Sliding Modulation Hooping Discreate
Keywords    :   Multiple Input Multiple Output (MIMO), Orthogonal Frequency Division Multiplexing (OFDM), Fast Fourier Transform (FFT), Sliding Modulated Hopping Discrete Fourier Transform (SMHDFT)
Issue Date    :   February 2020
Abstract    :   — Multiple Input Multiple Output (MIMO) and Orthogonal Frequency Division Multiplexing (OFDM) are the two assuring technologies that offers high data rate as required for the 4G wireless systems. Conventionally OFDM is Fast Fourier Transform (FFT) based system. It uses IFFT (Inverse FFT) blocks in the transmitter and FFT blocks in the receiver. OFDM combined with MIMO gives increased throughput and better system performance and hence FFT based MIMO OFDM systems are widely used in 4G wireless schemes. This Proposed method is the new algorithm of SMHDFT to replace the FFT in 4G communication systems to maintain the high precision and stability. A new Sliding Modulated Hopping Discrete Fourier Transform (SMHDFT) algorithm which is characterized by its merits of high accuracy and constant stability is presented. The proposed algorithm, which is based on the circular frequency shift property of DFT, directly moves the k–th DFT bin to the position and computes the DFT by incorporating
Page(s)    :   Pages : 7-11
ISSN(Online)    :   2455-0523
Source    :   IJAET - Volume 6 Issue 2
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