Topic
SC-FDE
About: SC-FDE is a research topic. Over the lifetime, 438 publications have been published within this topic receiving 7547 citations.
Papers published on a yearly basis
Papers
More filters
02 Jun 2013
TL;DR: A low complexity linear FDE is proposed which incorporates knowledge of the channel estimation error variance and derive analytical BER expressions and it is shown that its performance becomes more robust in the presence of strongChannel estimation error components compared with a conventional FDE receiver.
Abstract: Imperfect channel estimation can have a severe impact on the performance of coherent detection systems. In this paper we study the effect of imperfect channel knowledge in the performance of SC-FDE (Single Carrier with Frequency Domain Equalization). We propose a low complexity linear FDE which incorporates knowledge of the channel estimation error variance and derive analytical BER expressions. It is shown that its performance becomes more robust in the presence of strong channel estimation error components compared with a conventional FDE receiver. We also compare the degradation caused by imperfect channel estimation in SC-FDE and in OFDM schemes (Orthogonal Frequency Division Multiplexing) and show that the channel estimation requirements for SC-FDE are higher than for OFDM.
01 May 2018
TL;DR: Simulation results confirm that proposed algorithm has lower steady-state mean-square error and approximately 8dB improvement in bit error rate is observed in high Doppler shifts, compared to recently proposed adaptive frequency domain decision feedback equalizer.
Abstract: In this paper, we introduce a novel adaptive frequency-domain equalizer structure for single-carrier frequency domain equalization communications. The introduced equalizer is developed by inspiring from time domain affine projection algorithm to be used in frequency domain. Simulation results confirm that proposed algorithm has lower steady-state mean-square error and approximately 8dB improvement in bit error rate is observed in high Doppler shifts, compared to recently proposed adaptive frequency domain decision feedback equalizer. Proposed algorithm also enhances the spectral efficiency by allowing longer data block usage without reducing system performance.
01 Mar 2018
TL;DR: This paper investigates the method to combat the induced ISIs together with one equalizer at the receiver and demonstrates that acceptable BER system performance can be achieved with the proposed transceiver.
Abstract: When the Faster-than-Nyquis (FTN) signal transmits in the Single Carrier Frequency-Domain Equalization (SC-FDE) system over the multipath frequency selective channel, the Inter-Symbol Interferences (ISIs) will be induced by both FTN signaling and multipath channel. In this paper, we investigate the method to combat the induced ISIs together with one equalizer at the receiver. The simulation results demonstrate that acceptable BER system performance can be achieved with our proposed transceiver.
01 Sep 2009
TL;DR: Computer simulation shows that the proposed block transmission system with frequency-domain equalization (SC-FDE) aided by the insertion of cyclic prefix can provide diversity benefit as the non-differential system does, while greatly reducing the receiver complexity.
Abstract: In this paper, we propose a new differential MIMO single-carrier system with frequency-domain equalization (SC-FDE) aided by the insertion of cyclic prefix. This block transmission system not only inherits all the merits of the SISO SC-FDE system, but is also equipped with a differential spacetime block coding (DSTBC) such as to combat the fast-changing frequency selective fading channels without the needs to estimate and then compensate the carrier frequency offset and channel effects. Hence, for practical applications, it has the additional merits of decoding simplicity and robustness against difficult transmission environments. Computer simulation shows that with two transmit antennas, the proposed system can provide diversity benefit as the non-differential system does, while greatly reducing the receiver complexity.
Journal Article•
TL;DR: In this article, a subcarrier combining method is proposed for analog single-carrier transmission with frequency domain equalization (analog SC-FDE) in order to improve performance of analog signal transmission.
Abstract: Recently, we proposed analog single-carrier transmission with frequency-domain equalization (analog SC-FDE) in order to improve performance of analog signal transmission. Analog SC-FDE signal spectrum has a complex conjugate relation between lower sideband (LSB) and upper sideband (USB) since analog signal is real-valued. Exploiting this property, the LSB and USB subcarriers can be combined to obtain an additional frequency diversity gain. In this paper, a subcarrier combining method is proposed for analog SC-FDE. A theoretical analysis of normalized mean square error (NMSE) performance is also presented to evaluate the effect of subcarrier combining and is confirmed by computer simulation. We show that subcarrier combining achieves similar diversity order to 2-branch antenna diversity. In addition, the impact of channel frequency-selectivity on the NMSE performance was also investigated to show the effectiveness of proposed scheme. Keyword Analog SC-FDE, Subcarrier combining, Antenna diversity