System and Method Including Modified Bit-Interleaved Coded Modulation
    2.
    发明申请
    System and Method Including Modified Bit-Interleaved Coded Modulation 有权
    包括修改的位交错编码调制的系统和方法

    公开(公告)号:US20130216221A1

    公开(公告)日:2013-08-22

    申请号:US13569628

    申请日:2012-08-08

    摘要: A system and method with a modified bit-interleaved coded modulation with iterative decoding (BICM-ID). Coded and interleaved bits are combined and coded with a second FEC code that is then mapped to a modulation format. The second FEC code may be a single parity check (SPC) and the scheme may be referred to as a SPC-BICM-ID scheme.

    摘要翻译: 具有经过修改的位交织编码调制与迭代解码(BICM-ID)的系统和方法。 编码和交织的比特被组合并用第二FEC码进行编码,然后将其映射到调制格式。 第二FEC码可以是单个奇偶校验(SPC),并且该方案可以被称为SPC-BICM-ID方案。

    High Loss Loop Back For Long Repeater Span
    9.
    发明申请
    High Loss Loop Back For Long Repeater Span 有权
    高损耗回路用于长中继器跨度

    公开(公告)号:US20090324249A1

    公开(公告)日:2009-12-31

    申请号:US12146811

    申请日:2008-06-26

    申请人: Hongbin Zhang

    发明人: Hongbin Zhang

    IPC分类号: H04B10/00

    CPC分类号: H04B10/071 H04B10/035

    摘要: Various high loss loop back (HLLB) repeater architectures are disclosed that enable selectively monitoring (e.g., measuring, analyzing, etc) of Rayleigh signals from both inbound and outbound directions of an optical communication system. In one such embodiment, first and second optical test signal frequencies (or ranges) are used, in conjunction with selective filtering, for monitoring the outbound and inbound paths, respectively. The repeater architectures allow optical time domain reflectometry (OTDR) monitoring techniques to be employed, for example, in particularly long repeater spans, such as those in excess of 90 km in length.

    摘要翻译: 公开了各种高损耗环回(HLLB)中继器架构,其能够从光通信系统的入站和出站方向选择性地监视(例如,测量,分析等等)瑞利信号。 在一个这样的实施例中,第一和第二光学测试信号频率(或范围)结合选择性过滤被分别用于监视出站和入站路径。 中继器架构允许采用光时域反射测量(OTDR)监测技术,例如,在特别长的中继器跨度(例如长度超过90km的那些)中。