The Experts below are selected from a list of 51513 Experts worldwide ranked by ideXlab platform

Weiping Liu - One of the best experts on this subject based on the ideXlab platform.

  • Adaptive Channel matched detection for c band 64 gbit s optical ook system over 100 km dispersion uncompensated link
    Journal of Lightwave Technology, 2020
    Co-Authors: Haide Wang, Ji Zhou, Dong Guo, Yuanhua Feng, Weiping Liu
    Abstract:

    In this paper, we propose Adaptive Channel-matched detection (ACMD) to effectively compensate Channel distortions for C-band 64-Gbit/s intensity-modulation and direct-detection (IM/DD) optical on-off keying (OOK) system over a 100-km dispersion-uncompensated link. The proposed ACMD can Adaptively compensate most of the link distortions based on Channel and noise characteristics, which includes a polynomial nonlinear equalizer (PNLE), a decision feedback equalizer (DFE) and maximum likelihood sequence estimation (MLSE). Based on the Channel characteristics, PNLE eliminates the linear and nonlinear distortions, while the followed DFE compensates the spectral nulls caused by chromatic dispersion. Finally, based on the noise characteristics, a post filter can whiten the noise for implementing optimal signal detection using MLSE. To the best of our knowledge, we present a record C-band 64-Gbit/s IM/DD optical OOK system over a 100 km dispersion-uncompensated link achieving 7% hard-decision forward error correction limit using only the proposed ACMD at the receiver side.

  • Adaptive Channel matched detection for c band 64 gbit s optical ook system over 100 km dispersion uncompensated link
    arXiv: Signal Processing, 2020
    Co-Authors: Haide Wang, Ji Zhou, Dong Guo, Yuanhua Feng, Weiping Liu
    Abstract:

    In this paper, we propose Adaptive Channel-matched detection (ACMD) for C-band 64-Gbit/s intensity-modulation and direct-detection (IM/DD) optical on-off keying (OOK) system over a 100-km dispersion-uncompensated link. The proposed ACMD can Adaptively compensate most of the link distortions based on Channel and noise characteristics, which includes a polynomial nonlinear equalizer (PNLE), a decision feedback equalizer (DFE) and maximum likelihood sequence estimation (MLSE). Based on the Channel characteristics, PNLE eliminates the linear and nonlinear distortions, while the followed DFE compensates the spectral nulls caused by chromatic dispersion. Finally, based on the noise characteristics, a post filter can whiten the noise for implementing optimal signal detection using MLSE. To the best of our knowledge, we present a record C-band 64-Gbit/s IM/DD optical OOK system over a 100 km dispersion-uncompensated link achieving 7\% hard-decision forward error correction limit using only the proposed ACMD at the receiver side. In conclusion, ACMD-based C-band 64-Gbit/s optical OOK system shows great potential for future optical interconnects.

Haide Wang - One of the best experts on this subject based on the ideXlab platform.

  • Adaptive Channel matched detection for c band 64 gbit s optical ook system over 100 km dispersion uncompensated link
    Journal of Lightwave Technology, 2020
    Co-Authors: Haide Wang, Ji Zhou, Dong Guo, Yuanhua Feng, Weiping Liu
    Abstract:

    In this paper, we propose Adaptive Channel-matched detection (ACMD) to effectively compensate Channel distortions for C-band 64-Gbit/s intensity-modulation and direct-detection (IM/DD) optical on-off keying (OOK) system over a 100-km dispersion-uncompensated link. The proposed ACMD can Adaptively compensate most of the link distortions based on Channel and noise characteristics, which includes a polynomial nonlinear equalizer (PNLE), a decision feedback equalizer (DFE) and maximum likelihood sequence estimation (MLSE). Based on the Channel characteristics, PNLE eliminates the linear and nonlinear distortions, while the followed DFE compensates the spectral nulls caused by chromatic dispersion. Finally, based on the noise characteristics, a post filter can whiten the noise for implementing optimal signal detection using MLSE. To the best of our knowledge, we present a record C-band 64-Gbit/s IM/DD optical OOK system over a 100 km dispersion-uncompensated link achieving 7% hard-decision forward error correction limit using only the proposed ACMD at the receiver side.

  • Adaptive Channel matched detection for c band 64 gbit s optical ook system over 100 km dispersion uncompensated link
    arXiv: Signal Processing, 2020
    Co-Authors: Haide Wang, Ji Zhou, Dong Guo, Yuanhua Feng, Weiping Liu
    Abstract:

    In this paper, we propose Adaptive Channel-matched detection (ACMD) for C-band 64-Gbit/s intensity-modulation and direct-detection (IM/DD) optical on-off keying (OOK) system over a 100-km dispersion-uncompensated link. The proposed ACMD can Adaptively compensate most of the link distortions based on Channel and noise characteristics, which includes a polynomial nonlinear equalizer (PNLE), a decision feedback equalizer (DFE) and maximum likelihood sequence estimation (MLSE). Based on the Channel characteristics, PNLE eliminates the linear and nonlinear distortions, while the followed DFE compensates the spectral nulls caused by chromatic dispersion. Finally, based on the noise characteristics, a post filter can whiten the noise for implementing optimal signal detection using MLSE. To the best of our knowledge, we present a record C-band 64-Gbit/s IM/DD optical OOK system over a 100 km dispersion-uncompensated link achieving 7\% hard-decision forward error correction limit using only the proposed ACMD at the receiver side. In conclusion, ACMD-based C-band 64-Gbit/s optical OOK system shows great potential for future optical interconnects.

Richard K Martin - One of the best experts on this subject based on the ideXlab platform.

  • fast converging blind Adaptive Channel shortening and frequency domain equalization
    IEEE Transactions on Signal Processing, 2007
    Co-Authors: Richard K Martin
    Abstract:

    Orthogonal frequency-division multiplexing (OFDM) is a popular transmission format for emerging wireless communication systems, including satellite radio, various wireless local area network (LAN) standards, and digital broadcast television. Single-carrier cyclic-prefixed (SCCP) modulation is similar to OFDM, but with all frequency-domain operations performed at the receiver. Systems employing OFDM and SCCP perform well in the presence of multipath provided that the Channel delay spread is shorter than the guard interval between transmitted blocks. If this condition is not met, a Channel-shortening equalizer can be used to shorten the Channel to the desired length. In modestly time-varying environments, an Adaptive Channel shortener is of interest. All existing Adaptive Channel shorteners require renormalization to restrain the Channel shortener away from zero. In this paper, we study the use of a unit-tap constraint rather than a unit-norm constraint on the Adaptive Channel shortener. We use this constraint to manipulate existing algorithms into a framework analogous to the recursive least squares algorithm, and we develop adaptation rules for blind and semiblind frequency domain equalizers for SCCP receivers. Simulations of the proposed algorithms show an order of magnitude improvement in convergence speed, as well as a reduced asymptotic bit error rate

  • blind Adaptive Channel shortening by sum squared auto correlation minimization sam
    IEEE Transactions on Signal Processing, 2003
    Co-Authors: J Balakrishnan, Richard K Martin, C R Johnson
    Abstract:

    We propose a new blind, Adaptive Channel shortening algorithm for updating the coefficients of a time-domain equalizer in a system employing multicarrier modulation. The technique attempts to minimize the sum-squared auto-correlation terms of the effective Channel impulse response outside a window of desired length. The proposed algorithm, known as "sum-squared auto-correlation minimization" (SAM), requires the source sequence to be zero-mean, white, and wide-sense stationary, and it is implemented as a stochastic gradient descent algorithm. Simulation results are provided, demonstrating the success of the SAM algorithm in an asymmetric digital subscriber loop (ADSL) system.

  • blind Adaptive Channel shortening by sum squared auto correlation minimization sam
    Asilomar Conference on Signals Systems and Computers, 2002
    Co-Authors: J Balakrishnan, Richard K Martin, C R Johnson
    Abstract:

    We propose a new blind, Adaptive Channel shortening algorithm for updating a time-domain equalizer (TEQ) in a system employing multicarrier modulation. The technique attempts to minimize the sum-squared auto-correlation of the combined Channel-TEQ impulse response outside a window of desired length. The proposed algorithm, sum-squared auto-correlation minimization (SAM), assumes the source sequence to be white and wide-sense stationary, and it is implemented as a stochastic gradient descent algorithm. Simulation results demonstrating the success of the SAM algorithm are provided.

Ji Zhou - One of the best experts on this subject based on the ideXlab platform.

  • Adaptive Channel matched detection for c band 64 gbit s optical ook system over 100 km dispersion uncompensated link
    Journal of Lightwave Technology, 2020
    Co-Authors: Haide Wang, Ji Zhou, Dong Guo, Yuanhua Feng, Weiping Liu
    Abstract:

    In this paper, we propose Adaptive Channel-matched detection (ACMD) to effectively compensate Channel distortions for C-band 64-Gbit/s intensity-modulation and direct-detection (IM/DD) optical on-off keying (OOK) system over a 100-km dispersion-uncompensated link. The proposed ACMD can Adaptively compensate most of the link distortions based on Channel and noise characteristics, which includes a polynomial nonlinear equalizer (PNLE), a decision feedback equalizer (DFE) and maximum likelihood sequence estimation (MLSE). Based on the Channel characteristics, PNLE eliminates the linear and nonlinear distortions, while the followed DFE compensates the spectral nulls caused by chromatic dispersion. Finally, based on the noise characteristics, a post filter can whiten the noise for implementing optimal signal detection using MLSE. To the best of our knowledge, we present a record C-band 64-Gbit/s IM/DD optical OOK system over a 100 km dispersion-uncompensated link achieving 7% hard-decision forward error correction limit using only the proposed ACMD at the receiver side.

  • Adaptive Channel matched detection for c band 64 gbit s optical ook system over 100 km dispersion uncompensated link
    arXiv: Signal Processing, 2020
    Co-Authors: Haide Wang, Ji Zhou, Dong Guo, Yuanhua Feng, Weiping Liu
    Abstract:

    In this paper, we propose Adaptive Channel-matched detection (ACMD) for C-band 64-Gbit/s intensity-modulation and direct-detection (IM/DD) optical on-off keying (OOK) system over a 100-km dispersion-uncompensated link. The proposed ACMD can Adaptively compensate most of the link distortions based on Channel and noise characteristics, which includes a polynomial nonlinear equalizer (PNLE), a decision feedback equalizer (DFE) and maximum likelihood sequence estimation (MLSE). Based on the Channel characteristics, PNLE eliminates the linear and nonlinear distortions, while the followed DFE compensates the spectral nulls caused by chromatic dispersion. Finally, based on the noise characteristics, a post filter can whiten the noise for implementing optimal signal detection using MLSE. To the best of our knowledge, we present a record C-band 64-Gbit/s IM/DD optical OOK system over a 100 km dispersion-uncompensated link achieving 7\% hard-decision forward error correction limit using only the proposed ACMD at the receiver side. In conclusion, ACMD-based C-band 64-Gbit/s optical OOK system shows great potential for future optical interconnects.

  • Adaptive Channel-Matched Detection for C-Band 64-Gbit/s Optical OOK System over 100-km Dispersion-Uncompensated Link
    2020
    Co-Authors: Wang Haide, Ji Zhou, Guo Dong, Feng Yuanhua, Liu Weiping, Yu Changyuan, Li Zhaohui
    Abstract:

    In this paper, we propose Adaptive Channel-matched detection (ACMD) for C-band 64-Gbit/s intensity-modulation and direct-detection (IM/DD) optical on-off keying (OOK) system over a 100-km dispersion-uncompensated link. The proposed ACMD can Adaptively compensate most of the link distortions based on Channel and noise characteristics, which includes a polynomial nonlinear equalizer (PNLE), a decision feedback equalizer (DFE) and maximum likelihood sequence estimation (MLSE). Based on the Channel characteristics, PNLE eliminates the linear and nonlinear distortions, while the followed DFE compensates the spectral nulls caused by chromatic dispersion. Finally, based on the noise characteristics, a post filter can whiten the noise for implementing optimal signal detection using MLSE. To the best of our knowledge, we present a record C-band 64-Gbit/s IM/DD optical OOK system over a 100 km dispersion-uncompensated link achieving 7\% hard-decision forward error correction limit using only the proposed ACMD at the receiver side. In conclusion, ACMD-based C-band 64-Gbit/s optical OOK system shows great potential for future optical interconnects.Comment: Under review of Journal of Lightwave Techonlog

Yuanhua Feng - One of the best experts on this subject based on the ideXlab platform.

  • Adaptive Channel matched detection for c band 64 gbit s optical ook system over 100 km dispersion uncompensated link
    Journal of Lightwave Technology, 2020
    Co-Authors: Haide Wang, Ji Zhou, Dong Guo, Yuanhua Feng, Weiping Liu
    Abstract:

    In this paper, we propose Adaptive Channel-matched detection (ACMD) to effectively compensate Channel distortions for C-band 64-Gbit/s intensity-modulation and direct-detection (IM/DD) optical on-off keying (OOK) system over a 100-km dispersion-uncompensated link. The proposed ACMD can Adaptively compensate most of the link distortions based on Channel and noise characteristics, which includes a polynomial nonlinear equalizer (PNLE), a decision feedback equalizer (DFE) and maximum likelihood sequence estimation (MLSE). Based on the Channel characteristics, PNLE eliminates the linear and nonlinear distortions, while the followed DFE compensates the spectral nulls caused by chromatic dispersion. Finally, based on the noise characteristics, a post filter can whiten the noise for implementing optimal signal detection using MLSE. To the best of our knowledge, we present a record C-band 64-Gbit/s IM/DD optical OOK system over a 100 km dispersion-uncompensated link achieving 7% hard-decision forward error correction limit using only the proposed ACMD at the receiver side.

  • Adaptive Channel matched detection for c band 64 gbit s optical ook system over 100 km dispersion uncompensated link
    arXiv: Signal Processing, 2020
    Co-Authors: Haide Wang, Ji Zhou, Dong Guo, Yuanhua Feng, Weiping Liu
    Abstract:

    In this paper, we propose Adaptive Channel-matched detection (ACMD) for C-band 64-Gbit/s intensity-modulation and direct-detection (IM/DD) optical on-off keying (OOK) system over a 100-km dispersion-uncompensated link. The proposed ACMD can Adaptively compensate most of the link distortions based on Channel and noise characteristics, which includes a polynomial nonlinear equalizer (PNLE), a decision feedback equalizer (DFE) and maximum likelihood sequence estimation (MLSE). Based on the Channel characteristics, PNLE eliminates the linear and nonlinear distortions, while the followed DFE compensates the spectral nulls caused by chromatic dispersion. Finally, based on the noise characteristics, a post filter can whiten the noise for implementing optimal signal detection using MLSE. To the best of our knowledge, we present a record C-band 64-Gbit/s IM/DD optical OOK system over a 100 km dispersion-uncompensated link achieving 7\% hard-decision forward error correction limit using only the proposed ACMD at the receiver side. In conclusion, ACMD-based C-band 64-Gbit/s optical OOK system shows great potential for future optical interconnects.