Ber Performance of Ofdm System with 16-qam and Varying Length of Guard Interval
نویسندگان
چکیده
Orthogonal frequency division multiplexing scheme being spectrally efficient is used in modern communication systems. To achieve error free communication guard interval is inserted using cyclic prefix and zero padding. The Bit Error Rate (BER) performance for orthogonal frequency division multiplexing (OFDM) system with 16-QAM and varying length of guard interval (GI) is presented.
منابع مشابه
Quadrature Amplitude Modulation All Optical Orthogonal Frequency Division Multiplexing-dense Wavelength Division Multiplexing-optical Wireless Communication System under Different Weather Conditions
This paper proposes an analytical model for evaluating the performance of dense wavelength division multiplexing (DWDM) for all optical orthogonal frequency division multiplexing (AO-OFDM) optical wireless channel. The investigated performance for proposed system is evaluated for the parameters bit error rate (BER) and Q factor .The constellation diagrams, and bit error rate (BER) of the recei...
متن کاملUsing WPT as a New Method Instead of FFT for Improving the Performance of OFDM Modulation
Orthogonal frequency division multiplexing (OFDM) is used in order to provide immunity against very hostile multipath channels in many modern communication systems.. The OFDM technique divides the total available frequency bandwidth into several narrow bands. In conventional OFDM, FFT algorithm is used to provide orthogonal subcarriers. Intersymbol interference (ISI) and intercarrier interferen...
متن کاملBER Analysis Of BPSK, QPSK, 16-QAM & 64-QAM Based OFDM System Over Rayleigh Fading Channel
Orthogonal frequency-division multiplexing (OFDM) is a method of encoding digital data on multiple carrier frequencies. The data are sent over parallel sub-channels with each sub-channel modulated by a modulation scheme such as BPSK, QPSK, 16 QAM etc. The advantage of OFDM is its ability to cope with severe channel conditions compared to a single carrier modulation scheme but still maintaining ...
متن کاملStudy of Tranmission Characteristics of 2x2 Mimo System for Different Digital Modulation Using Ofdm and Stbc Multiplexing Techniques and Zf Equalizer Receiver
A detailed analysis of the performance of 2×2 Multiple Input Multiple Output (MIMO) antenna system has been carried out by determining the transmit diversity using Orthogonal Frequency Division Multiplexing (OFDM) techniques. The transmission characteristics are determined for BPSK, QPSK and 16-QAM modulation. Additive White Gaussian Noise (AWGN) has been used presuming flat fading Rayleigh cha...
متن کاملPerformance Evaluation of MB-OFDM based UWB System
This paper investigates the Multi-band OFDM (MB-OFDM) based physical (PHY) layer proposal for IEEE 802.15.3a working group on short-range high data-rate Ultra-wide-Band (UWB) communications. An overview of the MB-OFDM PHY layer architecture with its various parameters is presented and the optimal choice of critical parameters is discussed. Next, we derive the theoretical un-coded Bit Error Rate...
متن کامل