ID 原文 译文
46496 首先，测试并建模分析了冗余控制分组对控制器性能的危害，进而形成了解决该问题的基本思路。 The endangerment of the redundant control packetsfor the performance of SDN controllers by testing and modeling was firstly analyzed, and then a basic solution to solvethe problem was formed.
46497 由此提出一种基于预装流表并滤除冗余分组（PFFR, preinstalling flow-tables & filtering redundant-packets）机制。 Therefore, a preinstalling flow-tables & filtering redundant packets (PFFR) mechanism wasproposed.
46498 PFFR 通过预装转移流表项限制 UDP 控制分组的初始速率，并通过按路径安装流表和冗余分组滤除算法快速消除冗余控制分组。 By preinstalling flow tables, PFFR limited the initial rate of control packets in UDP flows, and through instal-ling flow tables according to paths and utilizing the redundant packets filtering algorithm, PFFR eliminated redundantpackets rapidly.
46499 实现了基于 PFFR 的原型系统并进行了测试， A prototype system based on PFFR was implemented and tested.
46500 结果表明，PFFR 方法能够有效提升控制器的性能。 The experimental results prove that thePFFR mechanism can effectively improve the performance of the controller.
46501 提出延时门机制对动态故障树进行扩展，用于对子系统失效延时传播到上层系统进行建模， As a new extension of dynamic fault trees, time delay gate was proposed. This new mechanism can be used tomodel the time delay on the fault propagation from the lower level subsystems to the higher level system.
46502 并通过扩展动态贝叶斯网络对包含延时门的动态故障树进行求解。 The dynamicBayesian networks was extend to solve the dynamic fault trees containing time delay gates.
46503 还提出并实现了一种基于可满足性模理论的扩展动态故障树求解算法，支持由非确定性的基本事件概率范围约束求解系统的最优化失效率。 An algorithm based on SMTto support the optimized failure distribution under the nondeterministic range constraint of basic events was also proposed.
46504 通过对实际系统的分析、求解及与现有工具的对比，说明分析方法的有效性，并通过对实际系统的分析给出了基本事件概率约束和延时门参数对系统整体失效率的影响。 The effectiveness is shown by comparison with existing tools on analyzing and solving real systems, and the effects ofrange constraints and gate parameter on the failure distribution of systems is illustrated.
46505 针对常规差分空间调制（DSM, differential spatial modulation）方法没有发射分集功能以及接收译码复杂度高的问题，提出一种基于正交空时分组码的差分空间调制（OSTBC-DSM, differential spatial modulation schemebased on orthogonal space-time block code）方案。 Focusing on the problem that differential spatial modulation (DSM) couldn’t obtain transmit diversity and hashigh decoding complexity, a new differential spatial modulation scheme based on the orthogonal space-time block codewas proposed and the proposed scheme is called OSTBC-DSM.