Proceedings ArticleDOI
Performance of an OFDM/FM scheme for data transmission over fading mobile radio channels
E.F. Casas,Cyril Leung +1 more
- Vol. 36, pp 103-108
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TLDR
It is shown that Orthogonal Frequency Division Multiplexing (OFDM), a parallel transmission method, can provide improved performance by spreading the effects of a fade over many bits.Abstract:
The Bit Error Rate (BER) performance of common data transmission schemes is quite poor when operating over the Rayleigh-fading mobile radio channel. This is due to the very high BER during fades. In (1) it is shown that Orthogonal Frequency Division Multiplexing (OFDM), a parallel transmission method, can provide improved performance by spreading the effects of a fade over many bits. This paper examines the performance of OFDM transmitted over an FM channel (OFDM/FM). Simulation results comparing OFDM/FM to Non-Coherent Frequency Shift Keying (NCFSK) indicate performance gains of 5 to 9 dB at a Bit Error Rate (BER) of 10-3but negligible improvements at a BER of 10-2.read more
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Journal Article
Performance Comparison of MIMO Systems over AWGN and Rayleigh Channels with Zero Forcing Receivers
TL;DR: The effects of the number of transmit and receive antennas on the performance of MIMO system over AWGN and Rayleigh fading channels with ZF receiver is analyzed and bit error rate performance characteristics of Zero-Forcing receiver are investigated for M-PSK modulation technique.
Proceedings ArticleDOI
Bit error rate performance analysis of convolutional coded orthogonal frequency-division multiplexing system
TL;DR: The computer simulation results demonstrate that the convolutional encoded OFDM system outperforms with QAM modulation technique as compared to other digital modulation schemes and the system is highly effective to combat inherent interferences under Rayleigh and Rician fading channels.
Proceedings ArticleDOI
BER Assessment of FEC Incorporated OFDM-MPSK Wireless System
TL;DR: An OFDM based M-PSK wireless system is demonstrated incorporating diverse channel encoding techniques over Rayleigh fading channel and a significant improvement in BER of the simulated system using BCH over CC and RS is reported.
Journal ArticleDOI
BER Performance Analysis of FEC Incorporated OFDM-MPSK over Rician Channel
TL;DR: In present work, an OFDM system based on the diverse level of M-PSK digital modulation scheme is demonstrated integrating dissimilar channel encoding techniques over the Rician fading channel, presenting a substantial enhancement in BER performance of the simulated system using BCH over CC and RS.
Journal ArticleDOI
Performance Analysis of MIMO Systems over AWGN Channel with Antenna Selection using Zero Forcing Receivers
Navjot Kaur,Lavish Kansal +1 more
TL;DR: The performance analysis of MIMO system over AWGN fading channel with ZF receiver is presented and the BER (Bit Error Rate) performance characteristics of Zero-Forcing receiver is investigated for M-PSK modulation technique over the AWGN channel.
References
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Book
Microwave Mobile Communications
William C. Jakes,Donald C. Cox +1 more
TL;DR: An in-depth and practical guide, Microwave Mobile Communications will provide you with a solid understanding of the microwave propagation techniques essential to the design of effective cellular systems.
Journal ArticleDOI
Analysis and Simulation of a Digital Mobile Channel Using Orthogonal Frequency Division Multiplexing
TL;DR: The analysis and simulation of a technique for combating the effects of multipath propagation and cochannel interference on a narrow-band digital mobile channel using the discrete Fourier transform to orthogonally frequency multiplex many narrow subchannels, each signaling at a very low rate, into one high-rate channel is discussed.
Journal ArticleDOI
Data Transmission by Frequency-Division Multiplexing Using the Discrete Fourier Transform
Stephen B. Weinstein,P. Ebert +1 more
TL;DR: The Fourier transform data communication system is described and the effects of linear channel distortion are investigated and a differential phase modulation scheme is presented that obviates any equalization.
Journal ArticleDOI
Performance of an Efficient Parallel Data Transmission System
TL;DR: A parallel quadrature AM data transmission system with a number of overlapping channels, each carrying a signaling rateb, spacedb/2apart in frequency appears to be a promising technique for achieving good performance at high information rates over bandlimited dispersive transmission media.
Journal ArticleDOI
Voice and data transmission in a mobile radio channel at 850 MHz
G.A. Arredondo,J.I. Smith +1 more
TL;DR: This paper is a review of those properties of a communications channel in the 850 MHz band that have importance to the quality of voice and data transmission for frequency modulated land mobile radio.