WAP网关服务器应用及其与有线网结合

WAP（Wireless Application Protocol）是无线应用协议的简称，它是开发移动网络上类似互联网应用的一系列规范的组合。WAP协议与现在通行的互联网协议类似，但专为小屏幕、窄带的用户装置（如移动电话）优化。WAP协议是公开的、全球性的标准，由有兴趣参加WAP FORUM（WAP论坛）的成员共同讨论、制定和拥有，它使无线装置可以轻易、实时地交流信息和服务。     

WAPP2.0 PUSH技术在无线网络中的应用

WAP（无线应用协议）是一个开放的工业标准，代表了未来网络中移动通信网和因特网相结合的发展方向。本文分析了其最新版本WAP2.0协议的新特性及其“推”（PUSH）技术构架，并探讨了它在无线网络中的应用实现。     

浅谈WAP的应用

WAP（Wireless Application Protocol）是无线应用协议,是一个为实现新的移动业务而定义的语言,通信协议及工具的集合。阐述了WAP的一些内容及经典的WAP结构模型,介绍了一些WAP服务器的连接模型,并对将来WAP服务器的应用作了简要的概述。     

PUSH技术在WAP中的应用研究

WAP（Wireless Application Protocol）1.2协议是关于WAP的最新版本,与当前被广泛应用的WAP1.1版本相比,WAP1.2提出了许多新的设想,并引进了很多新的技术,中所说明的PUSH技术是在WAP1.1中不曾涉及的,主要运用于服务商主动向用户发送消息。分析了在WAP1.2协议中对PUSH技术应用的构架,并给出了在现有的WAP系统上加载PUSH应用的系统设计。     

WAP手机竞峥嵘

眼下,WAP成了手机市场的一个闪亮点,但是相信大多数手机用户并不清楚WAP手机的真正含义,笔者通过翻阅整理了一些资料,并将市场上已经在销售或将要销售的WAP手机产品罗列在本文中,希望能够增进大家对WAP的了解。关于WAP在弄清楚WAP手机之前,需要了解一下WAP是什么。1997年,摩托罗拉、爱立信和诺基亚三大移动通信巨头及最初称为Unwired Planet的Phone.com发起成立了WAP论坛,推出了可通用于多种无线平台的WAP协议。WAP（无线应用协议）是在数字移动电话、因特网或其他个人数字助理机（PDA）、计算机应用之间进行通讯的…     

洗尽铅华看“WAP”

在过去的3年中，WAP（无线应用协议）曾经红极一时，又很快被冷落一旁。喧嚣过后，一切归于沉寂。很多业内人士认为，WAP失败的命运似乎已经无法避免，然而，这是否是关于WAP结局的定论？本文通过回顾WAP在我国的发展及对WAP协议集进行详尽的分析，力图以客观求实的观点论述WAP发展的未来。     

无线网络中无线应用协议的分析

WAP技术是移动终端访问无线信息服务的全球主要标准。介绍了无线通讯技术中的WAP协议的各个层次协议所包含主要内容，并讨论了WAP协议中安全协议——无线传输层安全（WTLS）协议，最后介绍当前WAP应用中存在的一些缺陷。     

无线数据报协议实现研究

无线数据报协议是无线应用协议（WAP）协议栈中重要的最底层协议。本文对WDP/WCMP协议进行概括介绍,并结合我们的工作对WDP/WCMP协议的实现进行研究和分析。     

几种WAP承载方式的比较

无线应用协议（WAP）作为无线Internet的解决方案,目前受到了广泛的关注。移动网络的数据承载业务作为实现WAP应用的必由之路起着关键的作用。分析研究了GSM网络中的几种数据承载业务,给出了各种数据承载业务分别作为WAP的承载时的实现方式,并对其优劣之处进行了分析和比较。     

MMS业务现状和发展浅析

MMS（Multimedia Messaging Service)多媒体短信业务，其工业标准是由WAP Forum(WAP论坛）和3GPP（3G伙伴计划）制定的。多媒体短信业务以WAP（无线应用协议）为载体，能够传送视频片段，图片，声音和文字，实现即时的手机端到端，手机终端到互联网或互联网到手机终端的多媒体信息传送。     

基于IP的MMS服务器和客户端设计

多媒体消息业务(MMS)是3GPP和WAP论坛定义的一种移动信息业务.该文介绍了MMS的网络架构和WAP协议栈的体系结构,然后深入剖析了MMS的事务处理过程和基于WAP和HTTP协议栈的具体操作,最后给出了IP网络环境下MMS Server和MMS Client基于WAP协议栈的的模拟和基于HTTP协议栈的程序实现.     

WAP网关实现研究

无线应用协议（Ｗｉｒｅｌｅｓｓ Ａｐｐｌｉｃａｔｉｏｎ Ｐｒｏｔｏｃｏｌ,ＷＡＰ０产品的开发与部署将基于因特网的网络应用技术与无线数据网络通信技术进行有效地结合,是当前产业界和研究界所共同关心的热点问题。文中就ＷＡＰ应用的核心技术之一－ＷＡＰ网关的实现与性能测试问题进行研究,讨论了我们所研发的一种基于ＵＮＩＸ平台和多线程技术的ＷＡＰ网关实现方法,分析了具体实现中的关键技术,并就ＷＡＰ网关实现的性能改进与测试工作进行分析和讨论,大量测试的结果表明,采用上述技术所研发的ＷＡＰ网关具有高的可靠性和运行性能。     

Characteristics of WAP Traffic

This paper considers the characteristics of Wireless Application Protocol (WAP) traffic. We start by constructing a WAP traffic model by analysing the behaviour of users accessing public WAP sites via a monitoring system. A wide range of different traffic scenarios were considered, but most of these scenarios resolve to one of two basic types. The paper then uses this traffic model to consider the effects of large quantities of WAP traffic on the core network. One traffic characteristic which is of particular interest in network dimensioning is the degree of self-similarity, so the paper looks at the characteristics of aggregated traffic with WAP, Web and packet speech components to estimate its self-similarity. The results indicate that, while WAP traffic alone does not exhibit a significant degree of self-similarity, a combined load from various traffic sources retains almost the same degree of self-similarity as the most self-similar individual source.     

新一代移动通信综合业务信息服务系统

无线应用协议 (WAP)融合了因特网技术与移动通信技术的优势 ,成为事实上的业界标准。基于WAP技术提供无线信息服务已成为目前移动通信与信息行业新的业务增长点。文章通过对WAP技术及其应用现状的分析 ,提出新一代移动通信综合业务信息服务系统解决方案。该系统将运营商优势与WAP技术充分结合 ,实现符合当前无线应用需求的运营模式和体系结构。     

Implementation of a WAP-based telemedicine system for patient monitoring

Many parties have already demonstrated telemedicine applications that use cellular phones and the Internet. A current trend in telecommunication is the convergence of wireless communication and computer network technologies, and the emergence of wireless application protocol (WAP) devices is an example. Since WAP will also be a common feature found in future mobile communication devices, it is worthwhile to investigate its use in telemedicine. This paper describes the implementation and experiences with a WAP-based telemedicine system for patient-monitoring that has been developed in our laboratory. It utilizes WAP devices as mobile access terminals for general inquiry and patient-monitoring services. Authorized users can browse the patients' general data, monitored blood pressure (BP), and electrocardiogram (ECG) on WAP devices in store-and-forward mode. The applications, written in wireless markup language (WML), WMLScript, and Perl, resided in a content server. A MySQL relational database system was set up to store the BP readings, ECG data, patient records, clinic and hospital information, and doctors' appointments with patients. A wireless ECG subsystem was built for recording ambulatory ECG in an indoor environment and for storing ECG data into the database. For testing, a WAP phone compliant with WAP 1.1 was used at GSM 1800 MHz by circuit-switched data (CSD) to connect to the content server through a WAP gateway, which was provided by a mobile phone service provider in Hong Kong. Data were successfully retrieved from the database and displayed on the WAP phone. The system shows how WAP can be feasible in remote patient-monitoring and patient data retrieval.     

支持移动多媒体通信中间件的WAP网关

WAP协议是WAP论坛提出的一个开放通信协议;WAP网关进行协议的转换,是移动终端无线接入Internet的枢纽。在简要介绍了无线应用协议后,提出了一个在Linux操作系统平台下运行的WAP网关(数据通信网关)的设计与实现方案,该WAP网关由承载层模块、WAP模块和SMS模块组成,其中详细介绍承载层模块和WAP模块的工作原理,并在实验室环境下对网关进行测试,给出了测试结果。     

基于WAP平台的图像采集浏览系统的研究

针对WAP平台业务发展的一些问题,特别是现阶段流媒体业务对移动终端的限制,本文依据WAP协议理论模型,采用图像采集、处理技术和网络通信技术,研究与实现了WAP平台下准实时图像采集浏览系统,从而基于WAP平台实现了支持任一WAP移动终端的实时图片浏览业务.这是一种新的WAP增值业务,较好地绕过了上述瓶颈.经测试证明,该图像采集浏览系统实现了良好的图像采集浏览效果.     

北电网络WAP试验网络及解决方案

北电网络与中国移动通信集团公司和江西移动通信公司共建的ＷＡＰ试验网络,由接入服务器、ＷＡＰ网关和功能服务器组成,该网络已完成了所有项目的试验,达到了预期的效果。北电网络的ＷＡＰ解决方案功能完善,组网灵活,并能支持ＷＡＰ ｏｖｅｒ ＧＰＲＳ和ＷＡＰ ｏｖｅｒ ＵＭＴＳ。     

Improving WTLS Security for WAP Based Mobile e-Commerce

In recent years, WAP has been gaining increasing popularity as a platform for mobile e-commerce; its security has thus become an important issue. In this paper, we focus primarily on improving WTLS, a sub-protocol of WAP, to achieve enhanced WAP security. We propose using an Anonymous Client Authentication (ACA) scheme, which can be applied in general to most Public Key Infrastructure based mobile e-commerce applications, to be incorporated into WTLS to provide client anonymity in WAP. Further, in order to support the desired security feature forward secrecy, and to resist various attacks which could hardly be coped with by the original WTLS, we exploit Elliptic Curve Cryptography (ECC) for session key establishment. The proposed protocol has been shown able to outperform not only the original WTLS protocol, but also the published improved WTLS protocols in terms of computation cost and communication bandwidth. Besides, the proposed ACA scheme can also be exploited in other internet and wireless network based platforms.