The Experts below are selected from a list of 2523 Experts worldwide ranked by ideXlab platform
Zhiwei Xu - One of the best experts on this subject based on the ideXlab platform.
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Hybrid Time synchronization implemented through special ring array for mesh or torus
Proceedings 11th International Parallel Processing Symposium, 1997Co-Authors: Zhiwei XuAbstract:In this paper, we present a new efficient Hybrid Time synchronization scheme for a mesh or torus interconnection networks, called ROCTS. ROCTS comprises two levels, one for the lower level that is implemented over a special high-speed ring array, one for the mesh or torus network. In ROCTS, the second network we construct is different from the past, which is a ring array with each ring not connected to any other. We can implement ROCTS in a distributed and fault-tolerant way. On the other hand, we combine the advantages of hardware and linear-envelope methods so that we can improve the performance of Time synchronization even if the work load on a mesh or torus network is not uniform or even the blocked nodes occur.
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IPPS - Hybrid Time synchronization implemented through special ring array for mesh or torus
Proceedings 11th International Parallel Processing Symposium, 1997Co-Authors: Zhiwei XuAbstract:In this paper, we present a new efficient Hybrid Time synchronization scheme for a mesh or torus interconnection networks, called ROCTS. ROCTS comprises two levels, one for the lower level that is implemented over a special high-speed ring array, one for the mesh or torus network. In ROCTS, the second network we construct is different from the past, which is a ring array with each ring not connected to any other. We can implement ROCTS in a distributed and fault-tolerant way. On the other hand, we combine the advantages of hardware and linear-envelope methods so that we can improve the performance of Time synchronization even if the work load on a mesh or torus network is not uniform or even the blocked nodes occur.
Yoshizo Takahashi - One of the best experts on this subject based on the ideXlab platform.
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ICPP (1) - Continuum: A Hybrid Time/Space Communications Paradigm for k-ary n-cubes
1994 International Conference on Parallel Processing-Vol 1 (ICPP'94), 1994Co-Authors: Andrew C. Flavell, Yoshizo TakahashiAbstract:Although major advances have been made in improving the performance of interconnection networks for parallel systems, this area continues to be an active avenue of research. This is primarily due to the important role that interconnection network performance plays in determining the overall performance of a system. In this paper we introduce the Continuum communications paradigm, which utilizes multiple, unidirectional, register-insertion buses to provide a Hybrid Time/space division network. A discussion of the register-insertion bus is presented, along with its extension to k-ary n-cubes. An evaluation of the Continuum paradigm by simulation is given and it is found it to provide an effective model for general inter processor communication.
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Continuum: A Hybrid Time/Space Communications Paradigm for k-ary n-cubes
1994 International Conference on Parallel Processing Vol. 1, 1994Co-Authors: Andrew C. Flavell, Yoshizo TakahashiAbstract:Although major advances have been made in improving the performance of interconnection networks for parallel systems, this area continues to be an active avenue of research. This is primarily due to the important role that interconnection network performance plays in determining the overall performance of a system. In this paper we introduce the Continuum communications paradigm, which utilizes multiple, unidirectional, register-insertion buses to provide a Hybrid Time/space division network. A discussion of the register-insertion bus is presented, along with its extension to k-ary n-cubes. An evaluation of the Continuum paradigm by simulation is given and it is found it to provide an effective model for general inter processor communication.
Andrew C. Flavell - One of the best experts on this subject based on the ideXlab platform.
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ICPP (1) - Continuum: A Hybrid Time/Space Communications Paradigm for k-ary n-cubes
1994 International Conference on Parallel Processing-Vol 1 (ICPP'94), 1994Co-Authors: Andrew C. Flavell, Yoshizo TakahashiAbstract:Although major advances have been made in improving the performance of interconnection networks for parallel systems, this area continues to be an active avenue of research. This is primarily due to the important role that interconnection network performance plays in determining the overall performance of a system. In this paper we introduce the Continuum communications paradigm, which utilizes multiple, unidirectional, register-insertion buses to provide a Hybrid Time/space division network. A discussion of the register-insertion bus is presented, along with its extension to k-ary n-cubes. An evaluation of the Continuum paradigm by simulation is given and it is found it to provide an effective model for general inter processor communication.
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Continuum: A Hybrid Time/Space Communications Paradigm for k-ary n-cubes
1994 International Conference on Parallel Processing Vol. 1, 1994Co-Authors: Andrew C. Flavell, Yoshizo TakahashiAbstract:Although major advances have been made in improving the performance of interconnection networks for parallel systems, this area continues to be an active avenue of research. This is primarily due to the important role that interconnection network performance plays in determining the overall performance of a system. In this paper we introduce the Continuum communications paradigm, which utilizes multiple, unidirectional, register-insertion buses to provide a Hybrid Time/space division network. A discussion of the register-insertion bus is presented, along with its extension to k-ary n-cubes. An evaluation of the Continuum paradigm by simulation is given and it is found it to provide an effective model for general inter processor communication.
Yongxin Yang - One of the best experts on this subject based on the ideXlab platform.
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An Alternative Hybrid Time-Frequency Domain Approach Based on Fast Iterative Shrinkage-Thresholding Algorithm for Rotating Acoustic Source Identification
IEEE Access, 2019Co-Authors: Xin Zhang, Yang Yang, Shuyi Zhao, Yongxin YangAbstract:An alternative Hybrid Time-frequency domain approach based on the fast iterative shrinkage-thresholding algorithm (FISTA) is presented for rotating acoustic source identification. This approach is similar to the existing approaches based on the deconvolution approach for the mapping of acoustic sources (DAMAS) and non-negative least squares (NNLS) without the sample interpolation of sound pressure signal in the Time domain. The acoustic source is first identified using the Time-domain tracking Delay and Sum (DAS) method. The Frequency-domain deconvolution is then performed to attenuate the sidelobes and improve the spatial resolution. The simulation and experimental results indicate that the proposed approach is robust to the sampling rate and enjoys the good spatial convergence and resolution, effective sidelobe suppression, accurate quantification, as well as high computational efficiency. In general, at a low Time-domain sampling rate, the proposed approach outperforms the DAMAS- or NNLS-based Hybrid Time-frequency domain approaches without the sample interpolation of sound pressure signal in the Time domain.
Yuefeng Ji - One of the best experts on this subject based on the ideXlab platform.
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Hybrid Time frequency domain equalization for led nonlinearity mitigation in ofdm based vlc systems
Optics Express, 2015Co-Authors: Jianfeng Li, Zhitong Huang, Yuefeng JiAbstract:A novel Hybrid Time-frequency domain equalization scheme is proposed and experimentally demonstrated to mitigate the white light emitting diode (LED) nonlinearity in visible light communication (VLC) systems based on orthogonal frequency division multiplexing (OFDM). We handle the linear and nonlinear distortion separately in a nonlinear OFDM system. The linear part is equalized in frequency domain and the nonlinear part is compensated by an adaptive nonlinear Time domain equalizer (N-TDE). The experimental results show that with only a small number of parameters the nonlinear equalizer can efficiently mitigate the LED nonlinearity. With the N-TDE the modulation index (MI) and BER performance can be significantly enhanced.
