ENERGY EFFICIENT CONSTELLATION METHOD AND SYSTEM
    6.
    发明申请
    ENERGY EFFICIENT CONSTELLATION METHOD AND SYSTEM 有权
    能源有效的方法和系统

    公开(公告)号:US20120307933A1

    公开(公告)日:2012-12-06

    申请号:US13487246

    申请日:2012-06-03

    IPC分类号: H04L27/00

    CPC分类号: H04L27/3411

    摘要: A method and apparatus employing statistical physics energy minimization methods to signal constellation design. By using statistical physics concepts, an energy-efficient signal constellation design algorithm (EE-SCDA) is described. In the presence of amplified spontaneous emission (ASE) noise and channel impairments, we use EE-SCDA to determine a source distribution, and represent the signal constellation design as a center of mass problem. Furthermore a discrete-time implementation of D-dimensional transceiver as well as corresponding EE polarization-division multiplexed (PDM) system is described.

    摘要翻译: 采用统计物理能量最小化方法来信号星座设计的方法和装置。 通过使用统计物理概念,描述了一种节能信号星座设计算法(EE-SCDA)。 在放大的自发发射(ASE)噪声和信道损伤的存在下,我们使用EE-SCDA来确定源分布,并将信号星座设计表示为质心问题。 此外,描述了D维收发器的离散时间实现以及相应的EE偏振分复用(PDM)系统。

    HIGH SPEED LDPC DECODING
    7.
    发明申请
    HIGH SPEED LDPC DECODING 有权
    高速LDPC解码

    公开(公告)号:US20100088571A1

    公开(公告)日:2010-04-08

    申请号:US12571501

    申请日:2009-10-01

    IPC分类号: H03M13/05 G06F11/10

    摘要: An optical probability-domain LDPC decoder suitable for implementation at 100 Gb/s and above provides large coding gains when based on large-girth LDPC codes. A basic building block, the probabilities multiplier circuit, used to implement both check node and probability node update circuits can be implemented using Mach-Zehnder delay interferometer.

    摘要翻译: 适用于100Gb / s以上的光概率域LDPC解码器在基于大围尺码LDPC码时提供较大的编码增益。 用于实现校验节点和概率节点更新电路的基本构建块,概率乘法器电路可以使用Mach-Zehnder延迟干涉仪来实现。