CODED POLARIZATION-MULTIPLEXED ITERATIVE POLAR MODULATION
    41.
    发明申请
    CODED POLARIZATION-MULTIPLEXED ITERATIVE POLAR MODULATION 有权
    编码极化 - 多重迭代极性调制

    公开(公告)号:US20110085624A1

    公开(公告)日:2011-04-14

    申请号:US12860659

    申请日:2010-08-20

    IPC分类号: H04L27/06

    摘要: Systems and methods for optical communication that use a transmitter/receiver. The systems and methods include receiving a modulated, encoded input stream. Channel memory is reduced using coarse digital backpropagation and other channel impairments are removed using turbo equalization. Symbols are detected in the input stream that conform to a non-uniform, polar constellation having a Gaussian source distribution to produce a stream of encoded data. The stream of encoded data is decoded with one or more low density parity check (LDPC) decoders.

    摘要翻译: 使用发射机/接收机的光通信系统和方法。 系统和方法包括接收经调制的编码的输入流。 使用粗数字反向传播减少信道存储,并且使用turbo均衡消除其他信道损伤。 在符合具有高斯源分布的非均匀极坐标的输入流中检测符号以产生编码数据流。 编码数据流用一个或多个低密度奇偶校验(LDPC)解码器解码。

    MITIGATION OF FIBER NONLINEARITIES IN MULTILEVEL CODED-MODULATION SCHEMES
    42.
    发明申请
    MITIGATION OF FIBER NONLINEARITIES IN MULTILEVEL CODED-MODULATION SCHEMES 有权
    多编码调制方案中纤维非线性的减缓

    公开(公告)号:US20100050048A1

    公开(公告)日:2010-02-25

    申请号:US12392335

    申请日:2009-02-25

    IPC分类号: H03M13/29 G06F11/10

    摘要: A receiver and method are provided for mitigation of finer non-linearities in multilevel coded-modulation schemes. The receiver includes a multilevel Bahl-Cocke-Jelinek-Raviv (BCJR) equalizer configured to receive channel samples of an input signal, partially mitigate fiber non-linearities, and provide symbol reliabilities. The receiver further includes a bit probabilities module coupled to the BCJR equalizer configured to calculate soft bit reliabilities from the symbol reliabilities. The receiver also includes one or more low-density parity-check (LDPC) decoders coupled to the bit probabilities module and the BCJR equalizer, configured to receive the soft bit reliabilities and output code words. The one or more LDPC decoders iteratively provide extrinsic soft information feedback to the BCJR equalizer to compensate for the fiber non-linearities.

    摘要翻译: 提供了一种用于缓解多电平编码调制方案中更精细的非线性的接收机和方法。 接收机包括一个多层次Bahl-Cocke-Jelinek-Raviv(BCJR)均衡器,被配置为接收输入信号的信道样本,部分地减轻光纤非线性并提供符号可靠性。 接收机还包括耦合到BCJR均衡器的位概率模块,其被配置为从符号可靠性计算软比特可靠性。 接收机还包括耦合到比特概率模块和BCJR均衡器的一个或多个低密度奇偶校验(LDPC)解码器,被配置为接收软比特可靠性和输出码字。 一个或多个LDPC解码器向BCJR均衡器迭代地提供外部软信息反馈以补偿光纤非线性。

    Optical communication system, device and method employing advanced coding and high modulation order
    43.
    发明授权
    Optical communication system, device and method employing advanced coding and high modulation order 有权
    光通信系统,采用先进编码和高调制顺序的装置和方法

    公开(公告)号:US09203544B2

    公开(公告)日:2015-12-01

    申请号:US12959689

    申请日:2010-12-03

    摘要: A transmitting device, a receiving device, an optical communication system, and associated methods are provided. The transmitting device transmits an optical signal containing data, and comprises: an optical tone generator for generating at least one optical tone; at least one encoder for performing advanced coding on at least one data signal respectively, each of the at least one data signal carrying a part of the data; at least one mapper for performing high order modulation on the at least one coded data signal; and an up-converter for up-converting the at least one high-order-modulated data signal into the optical signal to be outputted through the at least optical tone. Thereby, high speed (e.g., over 1-Tb/s) transmission per single channel over a long-haul distance (e.g. over 1000-km) with error-free recovery may be achieved.

    摘要翻译: 提供了发送设备,接收设备,光通信系统和相关联的方法。 发送装置发送含有数据的光信号,并且包括:光学乐音发生器,用于产生至少一个光学色调; 至少一个编码器,用于分别对至少一个数据信号执行高级编码,所述至少一个数据信号中的每一个承载所述数据的一部分; 至少一个映射器,用于对所述至少一个编码数据信号执行高阶调制; 以及上变频器,用于将至少一个高阶调制数据信号上变频成通过至少光调而输出的光信号。 因此,可以实现具有无差错恢复的长距离(例如超过1000公里)的每个信道的高速(例如,超过1-Tb / s)的传输。