DCS网状网自愈的进展

数字交叉连接系统（DCS）网状网是电信传输骨干网的主要拓扑结构。本文讨论了DCS网状网自愈的进展,其中包括SDH、ATM和WDM网状网自愈,同时说明了它们之间的相互关系。对电信传输网自愈和电信业务网的关系也进行了讨论。     

互联网流量的结构特性:重叠社团和相关性(英文)

There is an increasing number of Internet applications, which leads to an increasing network capacity and availability. Internet traffic characterisation and application identification are, therefore, more important for efficient network management. In this paper, we construct flow graphs from detailed Internet traffic data collected from the public networks of Internet Service Providers. We analyse the community structures of the flow graph that is naturally formed by different applications. The community size, degree distribution of the community, and community overlap of 10 Internet applications are investigated. We further study the correlations between the communities from different applications. Our results provide deep insights into the behaviour Internet applications and traffic, which is helpful for both network management and user behaviour analysis.     

一类新的线性码及重量分布

定义了一类新的线性码，它具有结构简单、码率较大的特点。利用一般方法产生了纠多个错的线性码。计算出这类线性码的重量分布，关于码的自同构群也得到了一些结果。     

互联网流量识别中的基于标签传播的重叠社团发现算法

The increased capacity and availability of the Internet has led to a wide variety of applications. Internet traffic characterization and application i-dentification is important for network management. In this paper, based on detailed flow data collected from the public networks of Internet Service Pro-viders, we construct a flow graph to model the in-teractions among users. Considering traffic from different applications, we analyze the community structure of the flow graph in terms of community size, degree distribution of the community, commu-nity overlap, and overlap modularity. The near line-ar time community detection algorithm in complex networks, the Label Propagation Algorithm (LPA), is extended to the flow graph for application identi-fication. We propose a new initialization and label propagation and update scheme. Experimental re-sults show that the proposed algorithm has high ac-curacy and efficiency.     

网络混合可靠度计算公式的优化

优化了一般故障情况下网络可靠度的计算公式，计算复杂度与只有端故障或只有边故障情况下可靠度的计算复杂性相当，网络混合可靠度的计算公式是对只有端故障或只有边故障情况下网络可靠度计算公式的很好推广。     

5维立方体上哈密顿圈的分类

给出ｎ维方体Ｑｎ哈密圈的一个递推产生；对圈定义型，通过型给出Ｑｎ上哈密顿圈分类的一些充分必要条件，并对Ｑ５上哈密顿圈按型做出分类，产生了５种以前未知的５维格雷码。     

基于用户流量的Internet性能监测方法研究

提出一种基于用户实际流量数据的分布式Internet性能监测方法，该方法相比一般的主动测量和被动测量具有易于实现、可扩展和更贴近用户真实感受的特点。简单的理论分析表明，只需要较少的测量用户，就可以达到较高的准确程度。该文根据该方法进行了实现，并经实际网络测量采集了数据，证明了方法的可行性和有效性。     

分布式SDH通道层自愈算法的探讨

讨论了ＳＤＨ通道层自愈，并提出一种消息传播机制，它是沿文中提出的消息树传播的；提出一种分布式ＳＤＨ通道层自愈算法，并与ＳＤＨ的分布式带宽管理相结合，对ＳＤＨ自愈网络的发展提出了一些看法。     

从非奇异布尔函数对产生M序列

本文指出一种构造产生Ｍ序列的方法，它是基于圈的合并，给出一个计数公式，并给出一个简单的生成算法，不同的非奇异布尔函数生成不同的Ｍ序列，从而可以生成２＾２ｎ－１－１个ｎ＋１级Ｍ序列。     

基于Intel PXA27x的AMR-WB性能优化与移植

AMR-WB（Adaptive Multi--Rate Wideband Speech Codec）同时被3GPP和ITU—T选定为高品质宽带语音编码标准，在移动终端上的实际应用和针对不同DSP平台，提出了优化和移植的任务。对AMR—WB在Intel PXA27x处理器上的优化经验进行了总结。讨论的移植优化方案对于其他语音编解码的移植与优化亦有参考价值。