OFDM Simulator Using MATLAB
نویسندگان
چکیده
Orthogonal frequency division multiplexing (OFDM) is a special case of multicarrier transmission and frequency division multiplexing, where a single data stream is transmitted over several lower rate subcarriers, placed orthogonal to each other. Today it is becoming the chosen modulation technique for wireless communications. It can provide large data rates with optimum bit error rate and enough robustness to radio channel impairments. In this paper, a user interface is designed using GUI tool of MATAB which facilitates us to analyze the performance of OFDM system in terms of SNR vs. BER variation. BPSK, QPSK and QAM techniques are analyzed in reference to OFDM processing. Rayleigh Fading channel and Multipath fading channels are used as a communication channel. Keywords— AWGN, Bit Error Rate, GUI, ISI, Multi Path fading channel, OFDM, Signal to Noise ratio
منابع مشابه
Hardware Implementation of PAPR Reduction with Clipping and Filtering Technique for Mobile Applications
Abstract-Orthogonal frequency division multiplexing (OFDM) is preferred for mobile communications applications due to its increased data transmission capability. At one hand, it has advantages of being robust to multipath fading and possessing high data rate transmission capability, on the other hand it suffers from high peak to average power ratio (PAPR). In this paper FPGA implementation of c...
متن کاملBer Analysis of Bpsk, Qpsk & Qam Based Ofdm System Using Simulink
Orthogonal frequency Division Multiplexing (OFDM) is a type of multicarrier modulation technique (MCM) in which higher data stream is divided into a number of lower data streams and transmitted over a large number of subcarriers. Various digital modulations techniques can be combined with OFDM for enhancing the performance of OFDM system. This paper focuses the MATLAB simulink model of BPSK, QP...
متن کاملImplementation of OFDM Transceiver using GMSK and QPSK Encoding Technique
OFDM (Orthogonal Frequency Division Multiplexing) transmissions are arising as important modulation techniques because of its robustness against interference. Various modulation schemes have been used to implement OFDM. In this paper, the OFDM transceiver system is implemented using MATLAB. Gaussian Minimum Shift Keying modulation technique has been implemented in the proposed OFDM. The bit err...
متن کاملPerformance Analysis of Multiband OFDM and Pulsed OFDM Using MATLAB Simulation
In this paper, we describe a approach for reducing the power consumption and complexity of a multiband orthogonal frequency division multiplexing (MB-OFDM) for ultra wideband (UWB) system by applying ideas from pulsed UWB systems. The approach is quite general and applicable to many other systems. Unlike the MB-OFDM system, the enhancement that we propose uses pulses with duty cycles of less th...
متن کاملPerformance Evaluation of Hybrid MIMO-OFDM System using Matlab
Multiple Transmit and receive antenna are now popularly used to form multiple input, multiple output (MIMO) channels to increase the capacity as well as to reduce the Bit Error Rate (BER). This paper describes the performance of Hybrid MIMO-OFDM (Orthogonal Frequency Division Multiplexing) models, which are developed & analyzed in Matlab ® Simulink. In this study 2×2 STBC-OFDM and 2×2 SM-OFDM s...
متن کامل