Journal ArticleDOI
Frequency domain equalization for single-carrier broadband wireless systems
Reads0
Chats0
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
More filters
Non-conventional multi-carrier air interface for mobile radio systems
TL;DR: The key idea of this work is to relax the Nyquist assumptions and to transmit with a time and/or frequency separation between the waveforms smaller than the minimum required to avoid interference.
Journal ArticleDOI
Frequency-domain differential detection and equalisation of differentially encoded DS-CDMA signals
Le Liu,Fumiyuki Adachi +1 more
TL;DR: Frequency-domain differential detection and equalisation for the reception of differentially encoded DS-CDMA signals transmitted over a frequency-selective fading channel is proposed and is much more robust against fast fading.
Journal ArticleDOI
DFT-Based OFDMA System with Phase Modulation for Broadband Communication
TL;DR: Simulation results show the significant improvement of the proposed system in terms of PAPR and BER when compared to the conventional system and the effectiveness of the DFT-based OFDMA with phase modulation for wireless broadband communications.
Proceedings ArticleDOI
On the distribution of the SINR in precoded multicarrier systems using linear MMSE equalization
TL;DR: In this paper, the Lognormal distribution with the smallest Kullback-Leibler distance to the observed SINR distribution is proposed as an approximation for the SINr of a precoded multicarrier system employing linear MMSE equalization.
Dissertation
Étude d'une nouvelle forme d'onde multiporteuses à PAPR réduit
TL;DR: The PAPR (rapport de la puissance crete sur la moyenne) as discussed by the authors is a variable aleatoire introduced by the authors of this paper for mesurer the variations of the OFDM signal.
References
More filters
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.