WDM网络中任播请求的平衡分析

In this paper, the wavelength-routed WDM network, was analyzed for the dynamic case where the arrival of anycast requests was modeled by a state-dependent Poisson process. The equilibrium analysis was also given with the UWNC algorithm.     

基于多路复用的群集邮件系统的研究与实践

在分析目前高校邮件系统面临问题及传统解决方案存在不足的基础上,讨论了实现横向可伸缩性,可用于连接到多个邮件服务器的单一域名,以使整个邮件服务器阵列作为一个单一主机呈现给邮件用户的多路复用器技术,并给出了中国农业大学基于此技术的群集邮件系统的应用实践.     

Blind receiver for OFDM systems via sequential Monte Carlo in factor graphs

INTRODUCTION Orthogonal frequency division multiplexing(OFDM) is generally known as an effective techniquefor high data rates and has been adopted by standardssuch as Digital Audio and Video Broadcasting (DABand DVB) (ETSI, 1994; 1997). OFDM is robustagainst frequency selectivity of a multipath channeland the single-tap equalization can be used to detectthe transmitted symbols if frequency-selective fadingchannels are known. Although, the use of pilot tonesis the most robust way …     

基于BLAST接收机的空间复用天线选择算法

1IntroductionMultiple-input multiple-output(MIMO)systems canoffer significant capacity gains,compared to single-input single-output(SISO)systems.The extra degreesof freedom offered by multiple antennas can be usedfor increasing bit rates through spatial m…     

PCI总线和USB接口

本文介绍了总线和接口的概念,并且在众多的总线标准和接口规范中,详细说明了PCI总线和USB接口的特点.     

正交频分复用系统及其关键技术研究

正交频分复用（OFDM）是4G移动通信系统中备受关注的关键技术之一,具有较强的抗干扰能力和较高的频谱利用率。在对OFDM系统的基本思想进行介绍的基础上,对该系统的优点和缺点分别进行了分析,并较详细地阐述了OFDM系统中的关键技术及存在的问题。