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.read more
Citations
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Journal ArticleDOI
Low complexity equalizers for single carrier transmissions over doubly selective channels
Proceedings ArticleDOI
Diversity Gain Analysis of Best Terminal Selection for Single-Input Multiple-Output WPAN Systems
TL;DR: It is shown that a QR decomposition (QRD)-based receiver and BTS are both needed to maintain the asymptotic diversity gain.
Design and Implementation of Digital Baseband Receiver for 60 GHz Wireless Communication
TL;DR: A fractional-sampling-rate digital baseband receiver to relax the ADC sampling rate requirement through multi-rate signal processing techniques; and a high-accuracy channel estimator to reconstruct interference-less CES responses for improving the BER performance of the equalizer are realized.
Book ChapterDOI
Multi-carrier Techniques
TL;DR: This chapter begins with a discussion of OFDM on frequency-selective channels, and describes how a cyclic guard interval can be used to completely remove any intersymbol interference (ISI) in a very efficient fashion provided that the length of the cyclicGuard interval is at least as long as the lengthof the overall discrete-time channel impulse response.
Bit Error Rate Analysis of STBC-OFDM Using Transmit FDE
TL;DR: It is shown thatSTBC using transmit FDE achieves identical BER performance to STBC using receive FDE, and the theoretical analysis is confirmed by computer simulation.
References
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Book
Adaptive Filter Theory
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.