Results 21 to 30 of about 4,923,004 (280)
A modified Alamouti scheme for frequency selective channels incorporating turbo equalization [PDF]
, 2002 The Alamouti scheme can achieve transmit diversity in the presence of frequency selective flat fading channels. The technique has received considerable attention mainly because of its processing simplicity. Recently, a modification to the Alamouti scheme
Nix, AR +7 more
core +1 more source
, 2007 Orthogonal Frequency Division Multiplexing (OFDM) has been employed in numerous wireless standards. However, the performance of OFDM systems is degraded by both the Carrier Frequency Offset (CFO) and the Phase Estimation Error (PER).
Liu, X. +3 more
core +2 more sources
Performance Analysis of MIMO STBC System in Flat Fading and Frequency Selective Fading Channels
Journal of Electrical, Electronics and Informatics, 2019 Multiple Input Multiple Output (MIMO) technology is a technique that can be used to overcome multipath fading. The multipath fading is caused by signals coming from several paths that experience different attenuations, delays and phases.
Pebri Yeni Samosir +3 more
doaj +1 more source
Improved Pilot-Aided Channel Estimation for MIMO-OFDM Fading Channels
International Journal of Antennas and Propagation, 2013 An improved pilot-aided channel estimation scheme is proposed to enhance the channel estimation accuracy of multiple-input multiple-output-orthogonal frequency division multiplexing (MIMO-OFDM) fading channels. Based on the adaptive path number selection
J. Mar, Chi-Cheng Kuo, M. B. Basnet
doaj +1 more source
Single-Carrier Rotation-Interleaved Space-Time Code for Frequency-Selective Fading Channels
Applied Sciences, 2022 A novel single-carrier-based space-time code construction scheme to exploit the advantages of a frequency-selective fading channel is investigated in this paper.
Benjamin K. Ng, Chan-Tong Lam
doaj +1 more source
Least Mean Square Frequency Domain Equalization for MIMO SC-FDMA System
Zanco Journal of Pure and Applied Sciences, 2019 Because single carrier modulation has low peak average power ratio (PAPR), it is used instead of multicarrier modulation in uplink transmission in Long Term Evolution (LTE).
Maha George Zia
doaj +1 more source
IEEE Access, 2020 In Digital Video Broadcasting-Handheld (DVB-H) devices for cyber-physical social systems, the Discrete Fractional Fourier Transform-Orthogonal Chirp Division Multiplexing (DFrFT-OCDM) has been suggested to enhance the performance over Orthogonal ...
Ahmad A. A. Solyman +7 more
doaj +1 more source
Neural network channel estimator for time‐variant frequency‐selective fading channels
Electronics Letters, 2023 The next generations of wireless communications systems are pushing the limits of the channel estimation methods utilized in the orthogonal frequency division multiplexing receptors.
Vinicius Piro Barragam +2 more
doaj +1 more source
Robust Sampling Frequency Offset Estimation for OFDM over Frequency Selective Fading Channels
Applied Sciences, 2018 Digital radio mondiale (DRM) is a terrestrial radio broadcasting standard to replace existing analogue AM and FM broadcasting, which is based on an orthogonal frequency division multiplexing (OFDM) technique. This paper focuses on the issue of estimating
Yong-An Jung, Young-Hwan You
doaj +1 more source
Transmitter Selection for Secrecy in a Frequency Selective Fading Channel with Unreliable Backhaul [PDF]
2021 IEEE 93rd Vehicular Technology Conference (VTC2021-Spring), 2021 In this paper, a communication network using single carrier with cyclic prefix modulation over frequency selective channels is considered, where an access point provides connectivity to a legitimate destination through multiple transmitters with unreliable backhaul links in the presence of an eavesdropper.
Shashi Bhushan Kotwal +4 more
openaire +3 more sources