OFDM transmitter and receiver


single chip Orthogonal Frequency Division Multiplexing (OFDM) transmitter and receiver have been designed using Verilog HDL. OFDM is a multi carrier modulation technique used in the various digital communication systems like 3G GSM, WiMAX and LTE etc. The main advantage of this transmission technique is its robustness to channel fading in wireless communication environment. There are many applications of OFDM in communication such as digital audio broadcasting, Asynchronous Digital Subscriber Line (ADSL) and High bit-rate Digital Subscriber Line (HDSL) systems. In OFDM, two algorithms digital signal processing algorithm Fast Fourier transform (FFT) and Inverse Fast Fourier Transform (IFFT) are mainly involved. The 8-point IFFT/FFT Decimation-In-Frequency (DIF) with radix-2 algorithm has been analyzed and incorporated in the design. The design has been simulated on the FPGA platform with Altera’s Quartus II simulator. Simulation results show that each of the modules of the proposed OFDM is working as desired. The test output achieved from the simulation result of the OFDM has been verified with that of the MATLAB output.

Design and implementation of OFDM transmitter and receiver on FPGA hardware
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ABSTRACT Orthogonal Frequency Division Multiplexing ( OFDM ) is a multi-carrier modulation technique which divides the available spectrum into many carriers. OFDM uses the spectrum efficiently compared to FDMA by spacing the channels much closer together

VLSI Implementation of Area-Efficient and Low Power OFDM Transmitter and Receiver
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This paper consists of an analysis of Fast Fourier Transform (FFT) architectures which are the backbone of any OFDM based wireless networks. By using the FFT concepts the authors are indeed in developing an efficient architectures for wireless networks which are common

Implementation of OFDM transmitter and receiver using FPGA
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Orthogonal Frequency Division Multiplexing ( OFDM ) is the most promising modulation technique. It has been adopted by most wireless and wired communication standards. The idea is to utilize a number of carriers, spread regularly over a frequency band, in such a way

Design and Implementation of OFDM transmitter and receiver using 8-point FFT/IFFT
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ABSTRACT Orthogonal Frequency Division Multiplexing ( OFDM ) is a multicarrier system where data bits are encoded to multiple subcarriers, while being sent simultaneously. This results in the optimal usage of bandwidth. A set of orthogonal sub-carriers together forms an

16APSK/16QAM- OFDM 3.2 Gbps RF signal direct-processing transmitter and receiver communication experiments using WINDS satellite
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Abstract The National Institute of Information and Communications Technology (NICT) has experimented using a 1,244 Mbps high-speed burst modem with single carrier QPSK modulation through a bandwidth of 1.1 GHz transponder on the Wideband InterNetworking

Study of FPGA based OFDM transmitter and receiver
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OFDM is a multi-carrier modulation technique with densely spaced sub-carriers that has gained a lot of popularity among the broadband community in the last few years. Orthogonal frequency division multiplexing ( OFDM ) is an established technique for wireless

An Implementation of OFDM Transmitter and Receiver on Reconfigurable Platforms
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Many of the present communication systems tend to use Orthogonal Frequency Division Multiplexing ( OFDM ) because of the higher data rates, low inter symbol interference (ISI) and easily compatible to the variation in the frequency. The present standards use inbuilt

Different Approaches for OFDM Transmitter and Receiver Design in Hardware FPGA Design and Implementation with Performance Comparison
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In this paper we investigate performances (bandwidth and speed) that could be obtained using basic logic structures for implementing improved Cooley-Tukey algorithm for IFFT/FFT in transmitter / receiver , as well the approach for implementing OFDM processing unit based

SDR implementation of an OFDM transmitter and receiver
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The new level of connectivity among machines and people promised by the forthcoming 5G mobile communication system will shape diverse application areas from healthcare and education to smart factories and autonomous driving. These applications have a variety of

Implementation of an Efficient OFDM transmitter and Receiver Using FPGA
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In this paper an efficient implementation of an Orthogonal Frequency Division Multiplexing ( OFDM ) system is proposed. Nowadays a lot of researches are going on OFDM since it is a high speed modulation technique and can be used in optical fiber communication systems

An SDR implementation of an OFDM transmitter and receiver in GNU Radio
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The new level of connectivity among machines and people promised by the forthcoming 5G mobile communication system will shape diverse application areas from healthcare and education to smart factories and autonomous driving. These applications have a variety of

FPGA Implementation of Baseband OFDM Transmitter and Receiver Using Modified IFFT/FFT to Reduce Latency
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The key component of any OFDM system is the IFFT/FFT block; moreover it is the most computationally complex block. In order to support 4G standard specified speeds, in mobile handheld devices it is necessary to reduce the computational complexity and the time taken

Path Diversity Schemes in OFDM Transmitter and Receiver
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OFDM TRANSMITTER AND RECEIVER PERFORMANCE IMPROVEMENTS FOR SMALL FORM FACTOR SDR HAND-HELD RADIOS
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ABSTRACT℘ OFDM exhibits high peak-to-average power ratios (PAPR) which requires high power amplifier (PA) backoff at the transmitter to minimize spectral regrowth due to clipping of the high signal peaks of the OFDM waveform. PA backoff is often also necessary to

RF Transmitter and Receiver for OFDM
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RoMoVi is a cooperative and autonomous robot that is being deployed in the vineyards of Douro river, with the objective of monitoring and executing logistics operations. However, due to the characteristics of the slope valley and dense vegetation, accurate coverage

Performance of Direct-Detection OFDM -UWB Systems with Compensation of Transmitter and Receiver Nonlinearity
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ABSTRACT A method to compensate the combined nonlinearity of the Mach-Zehnder modulator (MZM) and photo-diode in direct-detection orthogonal frequency division multiplexing-ultra wideband ( OFDM -UWB) systems is analysed using numerical simulation