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
More filters
Proceedings ArticleDOI
A FDE residual inter-symbol interference suppression algorithm with MBOK modulation for UWB channels
TL;DR: This paper proposes an effective approach to eliminate the residual ISI of equalization where the FDE is combined with M-ary bi-orthogonal keying (MBOK), which converts the UWB channel to a channel similar to AWGN and then achieves very significant gains.
Proceedings ArticleDOI
An optimum decision feedback equalizer for SC-FDMA systems
TL;DR: Simulation results show that the bit error rate performance of the proposed method is superior to the FD-LE and the conventional DFE, particularly at low signal to noise power ratio.
Proceedings ArticleDOI
An OFDM transmission technique with overlap FDE
TL;DR: This study proposes an orthogonal frequency division multiplexing (OFDM) transmission technique and shows the effect of the proposed technique over the multipath channels.
Patent
Systems/methods of sequential modulation of a single carrier frequency by a plurality of elements of a waveform
TL;DR: In this article, a waveform that comprises a plurality of elements is generated by using a Fourier transform and/or an inverse Fourier Transform (FT) transform. But the waveform is transmitted by transmitting, sequentially in time, a single carrier frequency.
Proceedings ArticleDOI
Full Diversity Achieving MMSE Frequency-Domain Equalizer for Time-Frequency Interleave Block Transmission
Hongliang Mao,Yukui Pei,Ning Ge +2 more
TL;DR: The linear minimum mean square error (LMMSE) frequency domain equalization structure of TFI block transmission is presented and each diversity branch can be combined with maximum ratio and the diversity gain and bit error rate (BER) performance are analyzed in a theoretical way.
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.