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Journal ArticleDOI

Frequency domain equalization for single-carrier broadband wireless systems

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.

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Citations
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Patent

Peak-to-average-power reduction for OFDM multiple access

Steve Shattil
TL;DR: In this paper, a code-division multiplexer arranges original data symbols from different data streams inside each length-N symbol block, which is spread by a Discrete Fourier Transform (DFT) spreader.

Low complexity LMS based adaptive iterative receiver for CDMA systems

TL;DR: The performance results show that the proposed adaptive receiver can approach the interference-free single user performance for a certain range of the signal to noise ratio (SNR).
Proceedings ArticleDOI

Transmit FDE weight design for single-carrier space-time block coded joint transmit/receive diversity

TL;DR: By theoretical analysis and computer simulation, it is shown that the optimal transmit FDE weight design can achieve 1/RSTBC times higher signal-to-interference plus noise power ratio (SINR) than the previous design, where RSTBC denotes the STBC coding rate.
Proceedings ArticleDOI

On the Use of Precoding in FBMC/OQAM Systems

TL;DR: A precoded SISO (single-input single-output) filterbank multicarrier system with zero-forcing (ZF) and minimum mean square error (MMSE) equalization is proposed and results show that in a well-equalized system, the Monte Carlo simulation results match the ones provided by the BER approximation presented in this paper.
Journal ArticleDOI

Fractional Fourier domain equalization for DCT based OFDM system with CFO

TL;DR: Fractional Fourier domain equalization (FFDE) is proposed for such DCT based OFDM system in the presence of CFO using DFRFT/IDFRFT replacing DFT/ IDFT at the receiver without any significant increase in the computational complexity.
References
More filters
Book

Adaptive Filter Theory

Simon Haykin
TL;DR: In this paper, the authors propose a recursive least square adaptive filter (RLF) based on the Kalman filter, which is used as the unifying base for RLS Filters.
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

Polyphase codes with good periodic correlation properties (Corresp.)

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.