Journal ArticleDOI
Frequency domain equalization for single-carrier broadband wireless systems
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TLDR
This article surveys frequency domain equalization (FDE) applied to single-carrier (SC) modulation solutions and discusses similarities and differences of SC and OFDM systems and coexistence possibilities, and presents examples of SC-FDE performance capabilities.Abstract:
Broadband wireless access systems deployed in residential and business environments are likely to face hostile radio propagation environments, with multipath delay spread extending over tens or hundreds of bit intervals. Orthogonal frequency-division multiplex (OFDM) is a recognized multicarrier solution to combat the effects of such multipath conditions. This article surveys frequency domain equalization (FDE) applied to single-carrier (SC) modulation solutions. SC radio modems with frequency domain equalization have similar performance, efficiency, and low signal processing complexity advantages as OFDM, and in addition are less sensitive than OFDM to RF impairments such as power amplifier nonlinearities. We discuss similarities and differences of SC and OFDM systems and coexistence possibilities, and present examples of SC-FDE performance capabilities.read more
Citations
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Evaluation of MIMO Systems with Respect to Front-End Imperfections
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Discuss the Impairments of SC-FDMA System
TL;DR: Simulation results have proved that the BER performance is not much affected by the PAPR reduction, and the effect of peak power reduction and the channel estimation error on the system Bit Error Rate is investigated.
Proceedings ArticleDOI
nfluência do número de símbolos de treinamento na transmissão em fibra óptica para sistemas OFDM e SC-FDE
TL;DR: In this paper, the authors compare the performance of OFDM and SC-FDE systems through the EVM metric, by varying the number of training symbols, making it unnecessary to send a larger number of symbols.
Proceedings ArticleDOI
Unit Tap Constrained Adaptive Channel Shortening Equalization
TL;DR: This paper uses the use of a unit-tap constraint to manipulate existing algorithms into a framework analogous to the recursive least squares algorithm, and develops adaptation rules for blind and semi-blind frequency domain equalizers for SCCP receivers.
Proceedings ArticleDOI
SC/FDE combined with MIMO: An improved out of band power and performance via tamed frequency modulation
TL;DR: This work applies the linearized TFM to the single carrier transmission with frequency domain equalization (SC/FDE) concept, and obtains a power and bandwidth efficient broadband technique for the SISO and MIMO multipath channels.
References
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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
BER sensitivity of OFDM systems to carrier frequency offset and Wiener phase noise
TL;DR: In this contribution the transmission of M-PSK and M-QAM modulated orthogonal frequency division multiplexed (OFDM) signals over an additive white Gaussian noise (AWGN) channel is considered and the degradation of the bit error rate is evaluated.
Journal ArticleDOI
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TL;DR: This correspondence describes the construction of complex codes of the form exp i \alpha_k whose discrete circular autocorrelations are zero for all nonzero lags.