高效无线寻呼编码器的研制

介绍了无线寻呼系统的ＰＯＣＳＡＧ编码和应用ＭＣＳ ５１单片机研制高效无线寻呼编码器的硬件框图和软件设计,比较了高效无线寻呼编码器与普通无线寻呼编码器的区别,并给出实际应用效果。     

基于WAP的无线寻呼软件

随着Ｉｎｔｅｒｎｅｔ的不断发展和壮大,许多应用程序都正在移植到Ｉｎｔｅｒｎｅｔ上,ＷＡＰ规范定义了一个开放的标准结构和一套用来实现无线Ｉｎｔｅｒｎｅｔ接入的协议,本文详细探讨了基于Ｉｎｔｅｒｅｎｔ的无线寻呼软件的实现方案,采用了ＷＡＰ应用模型,可对ＷＡＰ与ＷＥＢ服务器之间的数据过滤,实现了网络数据库操作及网上寻呼的软件开发过程。     

基于POCSAG码的无线股票接收机

文章在介绍了ＰＯＣＳＡＧ码寻呼协议之后，给出了自行研制的无线股票接收机的硬件框图和软件流程。     

无线寻呼远程控制器的设计与实践

本文运用ＰＯＣＳＡＧ码软件解码方法与远方控制技术，提供了一种无线电信息寻呼远控产品的设计与实践方法。     

一种POCSAG码的软件解码方案

将输入捕捉ＴＣＡＰ技术与输出比较ＴＣＭＰ技术组合运用，解决了ＰＯＣＳＡＧ码的速率识别、位（ｂｉｔ）、字同步问题。同时给出生成多项式ｇ（ｘ）模２快速除法及ＢＣＨ（３１，２１）监督位算法的软件实施方案。为读者提供一种无线寻呼系统增值服务ＰＯＣＳＡＧ码软件解码方法。     

无线寻呼FLEX/POCSAG综合测试仪的研制

介绍ＦＬＥＸ／ＰＯＣＳＡＧ无线寻呼综合测试仪的硬件结构,数字调制频率合成技术,高频编码技术以及单片机ＡＴ８９Ｃ５５的软件模块框图。     

构建EASP校园网信息服务

本文介绍了借助ＡＳＰ概念实现校园信息服务的主案设计,包括ＡＳＰ的概念的介绍及其应用优势,实现ＡＳＰ的代表性的技术介绍,使用Citrix公司的产品实现ＡＳＰ的具体方案。     

用ASP服务器组件实现Web页面上的随机图形显示

ＡＳＰ是交互式Ｗｅｂ页面、Ｗｅｂ数据库应用的重要技术,ＡＳＰ服务器组件可以进一步扩展ＡＳＰ的功能。本文是一个ＡＳＰ服务器组件实现了Ｗｅｂ页面上的随机图形显示。     

用ASP实现对Web数据库的访问

本文首先描述了ＡＳＰ的工作原理及ＡＳＰ的内置对象和组件,并着重讨论了ＡＳＰ的数据库访问组件ＡＤＯ,在此基础上给出了用ＡＳＰ实现对Ｗｅｂ数据库访问的应用实例。     

基于ASP的动态交互式Web数据库的开发

简述 Ａ Ｓ Ｐ及动态数据连接的基本原理,给出了基于 Ａ Ｓ Ｐ和动态数据连接实现 Ｗ ｅｂ 数据库应用的实例,分析了开发 Ａ Ｓ Ｐ文档的技术要点。     

Scalable control plane for intra-domain communication in software defined information centric networking

Recently there has been a new emerging trend in integrating Information Centric Networking (ICN) and Software Defined Networking (SDN) together in the future Internet research area. Software defined information centric networking (SD-ICN) may face more serious scalability problem in control plane compared with traditional SDN environment due to new features about in-network caching and content-based communication. In this paper, we propose a scalable area-based hierarchical architecture (SAHA) for intra-domain communication to address the control plane scalability problem in SD-ICN. The SAHA supports scalable awareness of network resources and content resources, as well as guarantees efficient interest matching and resource adaptation. Simulation experiments under OMNET++ show that the proposed SAHA can achieve outstanding scalability in resource awareness and content-based communication.     

Optimized traffic engineering in Software Defined Wireless Network based IoT (SDWN-IoT): State-of-the-art,research opportunities and challenges

Wireless networks have been in focus since the last few decades due to their indispensable role in the future generation networks like the Internet of Things (IoT). However, the associated challenges in wireless network implementation such as distance, line-of-sight, interference, weather, power issues, etc., affect the performance adversely. Software Defined Networking (SDN) is a future generation networking technology and has been proven to alleviate the performance challenges in the existing wireless IoT networks. It helps to evolve the wireless IoT domain in the form of Software Defined Wireless Network based IoT (SDWN-IoT). Traffic Engineering (TE) has been part of traditional network designs since long back, to improve the performance of the communication networks. However, its more optimized forms and their usefulness in SDWN-IoT networks have been under active investigation. This work explores the existing literature related to the major types of SDWN-IoT networks namely, Software Defined Wireless Sensor Network based IoT (SDWSN-IoT) and Software Defined Wireless Mesh Network based IoT (SDWMN-IoT). Additionally, the article also draws some useful inferences, and compares respective contributions and shortcomings. Finally, various research opportunities and challenges have been discussed with respect to the SDWSN-IoT and SDWMN-IoT networks.     

A review of information centric network-based internet of things: communication architectures,design issues,and research opportunities

Multimedia Tools and Applications - In the perspective of Internet advancements for the future Internet, Information Centric Network (ICN) offers a communication model, which is different from the...     

基于软件无线电的自适应跳频系统研究

软件无线电台是软件无线电技术在通信电台中的应用。随着自适应跳频技术的发展,自适应跳频技术在军事通信中得到越来越大的应用,本文就基于软件无线电的自适应跳频系统进行介绍及研究。     

On the performance of bandwidth and storage sharing in information-centric networks

Information Centric Network (ICN) proposals, have recently emerged to define new network architectures where content, and not its location, becomes the core of the communication model. Such new paradigms push data storage and delivery at network layer and are designed to cope with current Internet usage, mainly centered around content dissemination and retrieval.     

智能化住宅小区、智能大厦宽带接入技术

本文介绍了楼宇自动化－智能化住宅小区及智能大厦宽带接入技术ADSL，Cable Modem,LAN,卫星接入，无线连网等的技术概况及实施方案，各自的优缺点和所适应的场合等，以供楼宇自动化－智能化住宅小区及智能大厦（包括企，事业单位，家庭等）宽带接入时之参考。     

RIDSI:一种融合SDN和兴趣域划分的ICN路由机制

信息中心网络(Information-Centric Networking,ICN)中的服务质量(Quality of Service,QoS)路由是分布式的,无法感知其它路由器缓存的内容,因此,基于软件定义网络(Software Defined Networking,SDN)的全局视图和集中控制功能,本文提出了一种基于兴趣域划分的ICN路由机制.这种机制旨在减轻内容节点的负载、提高路由成功率和提高PIT命中率.首先,本文提出了基于SDN的ICN网络模型,即软件定义信息中心型网络(Software Defined Information Centric Networking,SD-ICN)模型和QoS评价模型.然后,采用蜂群算法将网络中的路由器划分到不同的兴趣域.最后,基于改进的QoS依赖多播路由(QoS Dependent M ulticast Routing,QDM R)算法计算满足多个兴趣请求的转发路径.仿真实验结果表明,本文提出的路由机制与对比机制相比在路由成功率、平均路由延迟、负载均衡度等方面都具有较好的性能.     

利用ASP．NET导出分页显示数据

在Web环境下,经常需要把查询到的数据导出到Excel来存储。由于查询结果的数据量比较大,所以要用Datagrid控件的分页功能来显示数据．本文通过实例详细讨论了如何把分页显示的数据导出到Excel文件。     

Results of applying the Personal Software Process

Too often, software developers follow inefficient methods and procedures. The Personal Software Process, developed by Watts Humphrey at the Software Engineering Institute, provides software engineers with a methodology for consistently and efficiently developing high quality products. The value of PSP has been shown in three case studies-three industrial software groups have used PSP and have collected data to show its effectiveness. They are: Advanced Information Services, Inc., Motorola Paging Products Group, and Union Switch and Signal Inc. Each has trained several groups of engineers and measured the results of several projects that used PSP methods. In all cases, the projects were part of the companies' normal operations and not designed for this study. The three companies offered a variety of situations useful for demonstrating the versatility of PSP. The projects at Motorola and US&S involved software maintenance and enhancement, while those at AIS involved new product development and enhancement. Among the companies, application areas included commercial data processing, internal manufacturing support, communications product support, and real time process control. Work was done in C or C++