Maximizing capacity of wavelength division multiplexing passive optical networks
    12.
    发明授权
    Maximizing capacity of wavelength division multiplexing passive optical networks 有权
    最大化波分复用无源光网络的容量

    公开(公告)号:US08351786B2

    公开(公告)日:2013-01-08

    申请号:US12723578

    申请日:2010-03-12

    IPC分类号: H04B10/20 H04J14/00

    摘要: Technologies are generally described for substantially maximizing capacity in a wavelength division multiplexing (WDM) passive optical network (PON). An “achievable rate region” may be defined as a set containing admissible traffic rates of a given WDM PON system such that a volume of an achievable rate region is proportional to a capacity of the network. Deriving the achievable rate region for a particular network, decisions may be made whether incoming traffic rate can or cannot be achieved for that network. Moreover, the achievable rate region may be used to construct a WDM PON utilizing a minimum number of wavelengths, a minimum number of lasers with narrowest tuning ranges, and a minimum number of receivers, thereby reducing a capital expenditure in building the PON system.

    摘要翻译: 通常描述技术用于在波分复用(WDM)无源光网络(PON)中实质上最大化容量。 可实现速率区域可以被定义为包含给定WDM PON系统的允许业务速率的集合,使得可实现速率区域的容积与网络的容量成比例。 为特定网络导出可达到的速率区域,可以决定是否可以为该网络实现传入流量速率。 此外,可实现的速率区域可以用于利用最小数量的波长,最小调谐范围的最小数量的激光器和最小数量的接收机来构造WDM PON,从而减少构建PON系统的资本支出。

    SCHEDULING WDM PON WITH TUNABLE LASERS WITH DIFFERENT TUNING TIMES
    13.
    发明申请
    SCHEDULING WDM PON WITH TUNABLE LASERS WITH DIFFERENT TUNING TIMES 有权
    使用具有不同调谐时间的可变激光器调度WDM PON

    公开(公告)号:US20110211834A1

    公开(公告)日:2011-09-01

    申请号:US12996772

    申请日:2010-08-13

    IPC分类号: H04J14/00

    CPC分类号: H04J14/0282

    摘要: Technologies are generally described for network traffic scheduling in a wavelength division multiplexing (WDM) passive optical network (PON). Dynamic wavelength assignment and time allocation in hybrid WDM/TDM PONs with tunable lasers as optical light generators is accomplished by mapping the scheduling into a multi-processor scheduling problem with wavelength channels as machines and ONU requests as jobs. Wavelengths may be considered as parallel identical machines. Taking laser tuning time into consideration preemptive and non-preemptive scheduling with the objective of minimizing the latest job completion time is computed employing a number of heuristic algorithms. The algorithms compute two extreme cases of zero and infinity laser tuning time, respectively. Using the results from these two extreme cases, the heuristic scheduling schemes for the case of arbitrary laser tuning time yield close average latest job completion times for both schedule types.

    摘要翻译: 波分复用(WDM)无源光网络(PON)中的网络流量调度通常被描述。 通过将可调激光器作为光发生器的混合WDM / TDM PON中的动态波长分配和时间分配通过将作为机器和ONU请求的波长信道的调度映射到波长信道的多处理器调度问题中来实现。 波长可以被认为是平行相同的机器。 将激光调谐时间考虑在抢先和非抢占式调度中,以最小化最新作业完成时间为目标,采用多种启发式算法进行计算。 算法分别计算了零和无限激光调谐时间的两个极端情况。 使用这两种极端情况下的结果,针对任意激光调谐时间的启发式调度方案可以得到两种计划类型的近似平均最近的作业完成时间。

    Method for synthesizing cationic bleach activators via a single-bath reaction
    14.
    发明申请
    Method for synthesizing cationic bleach activators via a single-bath reaction 有权
    通过单浴反应合成阳离子漂白活化剂的方法

    公开(公告)号:US20160221955A1

    公开(公告)日:2016-08-04

    申请号:US14953812

    申请日:2015-11-30

    摘要: The present invention provides a method for synthesizing cationic bleach activators via a single-bath reaction, comprising steps of: separately dissolving 4-chloromethylbenoyl chloride and lactam in its respective solvent, adding an acid-binding agent to the lactam solution, next adding dropwisely 4-chloromethylbenoyl chloride solution into the lactam/acid binding-agent solution, and finally adding tertiary amine to the solution above to make a reaction solution, which is further treated with mixing and refluxing. The washed and dried final product is TBLC cationic bleach activator. The method of the present invention greatly simplifies the synthesizing process and lowers the stringency of reaction conditions for preparing cationic bleach activators (TBLC). At the same time, the present method produces TBLC cationic bleach activators with high yields, making it a suitable option for industrial production of these bleach activators.

    摘要翻译: 本发明提供了通过单浴反应合成阳离子漂白活化剂的方法,包括以下步骤:将4-氯甲基苯甲酰氯和内酰胺分别溶解在其各自的溶剂中,向内酰胺溶液中加入酸结合剂,然后逐滴加入4 - 氯甲基苯甲酰氯溶液加入到内酰胺/酸结合剂溶液中,最后向上述溶液中加入叔胺制成反应溶液,进一步用混合和回流处理。 洗涤和干燥的最终产品是TBLC阳离子漂白活化剂。 本发明的方法大大简化了合成过程,降低了制备阳离子漂白活化剂(TBLC)的反应条件的严格性。 同时,本方法生产具有高产率的TBLC阳离子漂白活化剂,使其成为这些漂白活化剂的工业生产的合适选择。

    Differential frame based scheduling for input queued switches
    15.
    发明授权
    Differential frame based scheduling for input queued switches 有权
    输入排队交换机的基于差分帧的调度

    公开(公告)号:US08902912B2

    公开(公告)日:2014-12-02

    申请号:US13257305

    申请日:2010-11-03

    摘要: A differential frame-based scheduling scheme is employed for input queued (IQ) switches with virtual output queues (VOQ). Differential scheduling adjusts previous scheduling based on a traffic difference in two consecutive frames. To guarantee quality of service (QoS) with low complexity, the adjustment first reserves some slots for each port pair in each frame, then releases surplus allocations and supplements deficit allocations according to a dichotomy order, designed for high throughput, low jitter, fairness, and low computational complexity.

    摘要翻译: 对于具有虚拟输出队列(VOQ)的输入排队(IQ)交换机采用基于差分帧的调度方案。 差分调度根据两个连续帧中的流量差异来调整先前的调度。 为了保证低复杂度的服务质量,调整首先为每个端口对保留一些插槽,然后根据二分法排列剩余分配并补充缺省分配,设计用于高吞吐量,低抖动,公平性, 并且计算复杂度低。

    Scheduling WDM PON with tunable lasers with different tuning times
    18.
    发明授权
    Scheduling WDM PON with tunable lasers with different tuning times 有权
    使用具有不同调谐时间的可调激光器调度WDM PON

    公开(公告)号:US08521025B2

    公开(公告)日:2013-08-27

    申请号:US12996772

    申请日:2010-08-13

    IPC分类号: H04J14/00

    CPC分类号: H04J14/0282

    摘要: Technologies are generally described for network traffic scheduling in a wavelength division multiplexing (WDM) passive optical network (PON). Dynamic wavelength assignment and time allocation in hybrid WDM/TDM PONs with tunable lasers as optical light generators is accomplished by mapping the scheduling into a multi-processor scheduling problem with wavelength channels as machines and ONU requests as jobs. Wavelengths may be considered as parallel identical machines. Taking laser tuning time into consideration preemptive and non-preemptive scheduling with the objective of minimizing the latest job completion time is computed employing a number of heuristic algorithms. The algorithms compute two extreme cases of zero and infinity laser tuning time, respectively. Using the results from these two extreme cases, the heuristic scheduling schemes for the case of arbitrary laser tuning time yield close average latest job completion times for both schedule types.

    摘要翻译: 波分复用(WDM)无源光网络(PON)中的网络流量调度通常被描述。 通过将可调激光器作为光发生器的混合WDM / TDM PON中的动态波长分配和时间分配通过将作为机器和ONU请求的波长信道的调度映射到波长信道的多处理器调度问题中来实现。 波长可以被认为是平行相同的机器。 将激光调谐时间考虑在抢先和非抢占式调度中,以最小化最新作业完成时间为目标,采用多种启发式算法进行计算。 算法分别计算了零和无限激光调谐时间的两个极端情况。 使用这两种极端情况下的结果,针对任意激光调谐时间的启发式调度方案可以得到两种计划类型的近似平均最近的作业完成时间。

    DIFFERENTIAL FRAME BASED SCHEDULING FOR INPUT QUEUED SWITCHES
    19.
    发明申请
    DIFFERENTIAL FRAME BASED SCHEDULING FOR INPUT QUEUED SWITCHES 有权
    用于输入开关的基于差分框架的调度

    公开(公告)号:US20120008637A1

    公开(公告)日:2012-01-12

    申请号:US13257305

    申请日:2010-11-03

    IPC分类号: H04L12/56 H04J3/00

    摘要: A differential frame-based scheduling scheme is employed for input queued (IQ) switches with virtual output queues (VOQ). Differential scheduling adjusts previous scheduling based on a traffic difference in two consecutive frames. To guarantee quality of service (QoS) with low complexity, the adjustment first reserves some slots for each port pair in each frame, then releases surplus allocations and supplements deficit allocations according to a dichotomy order, designed for high throughput, low jitter, fairness, and low computational complexity.

    摘要翻译: 对于具有虚拟输出队列(VOQ)的输入排队(IQ)交换机采用基于差分帧的调度方案。 差分调度根据两个连续帧中的流量差异来调整先前的调度。 为了保证低复杂度的服务质量,调整首先为每个端口对保留一些插槽,然后根据二分法排列剩余分配并补充缺省分配,设计用于高吞吐量,低抖动,公平性, 并且计算复杂度低。

    MAXIMIZING CAPACITY OF WAVELENGTH DIVISION MULTIPLEXING PASSIVE OPTICAL NETWORKS
    20.
    发明申请
    MAXIMIZING CAPACITY OF WAVELENGTH DIVISION MULTIPLEXING PASSIVE OPTICAL NETWORKS 有权
    最大化波分复用被动光网络的容量

    公开(公告)号:US20100232790A1

    公开(公告)日:2010-09-16

    申请号:US12723578

    申请日:2010-03-12

    IPC分类号: H04B10/08

    摘要: Technologies are generally described for substantially maximizing capacity in a wavelength division multiplexing (WDM) passive optical network (PON). An “achievable rate region” may be defined as a set containing admissible traffic rates of a given WDM PON system such that a volume of an achievable rate region is proportional to a capacity of the network. Deriving the achievable rate region for a particular network, decisions may be made whether incoming traffic rate can or cannot be achieved for that network. Moreover, the achievable rate region may be used to construct a WDM PON utilizing a minimum number of wavelengths, a minimum number of lasers with narrowest tuning ranges, and a minimum number of receivers, thereby reducing a capital expenditure in building the PON system.

    摘要翻译: 通常描述技术用于在波分复用(WDM)无源光网络(PON)中实质上最大化容量。 可以将“可实现速率区域”定义为包含给定WDM PON系统的允许业务速率的集合,使得可实现速率区域的容积与网络的容量成比例。 为特定网络导出可达到的速率区域,可以决定是否可以为该网络实现传入流量速率。 此外,可实现的速率区域可以用于利用最小数量的波长,最小调谐范围的最小数量的激光器和最小数量的接收机来构造WDM PON,从而减少构建PON系统的资本支出。