Implementation of OFDM modulator and demodulator subsystems using 16 point FFT/IFFT pipeline arhitecture in FPGA

被引：0

作者：

Bhattacharya, Jayanta ^{[1
]}

De, Supratik ^{[1
]}

Bose, Soumyadeep ^{[1
]}

Banerjee, Indrajit ^{[1
]}

Bhuniya, Tridib ^{[1
]}

Karmakar, Rahit ^{[1
]}

Mandal, Kaustav ^{[1
]}

Sinha, Richa ^{[1
]}

Roy, Anubhav ^{[1
]}

Chaudhuri, Anusha ^{[1
]}

机构：

[1] Inst Engn & Management, Dept Elect & Commun, Kolkata, W Bengal, India

来源：

2017 8TH IEEE ANNUAL INFORMATION TECHNOLOGY, ELECTRONICS AND MOBILE COMMUNICATION CONFERENCE (IEMCON) | 2017年

关键词：

OFDM; FFT; radix-2(2) algorithm;

D O I：

暂无

中图分类号：

TP301 [理论、方法];

学科分类号：

081202 ;

摘要：

A multi-carrier modulation technique is Orthogonal Frequency Division Multiplexing (OFDM) which divides the available spectrum into many carriers. The spectrum efficiently uses in OFDM compared to FDMA by spacing the channels much closer together. All carriers in OFDM orthogonal to one another to prevent interference between the closely spaced carriers. The objective of this work is to study and design a basic OFDM modulator and demodulator which contain FFT (Fast Fourier Transform) and IFFT (Inverse Fast Fourier Transform), mapping block (QAM), De-mapping block, serial to parallel and parallel to serial converter using hardware programming language (VHDL). In OFDM system IFFT/FFT processor is designed based on pipelined architecture. The pipeline architecture hold so good so as to reduce the huge structure of FFT/IFFT processor. In this work radix-22 algorithm and radix-22 architecture is used to design FFT processor.

引用

页码：295 / 300

页数：6