NGN多业务通信与交换平台关键技术研究

发布时间：2018-05-18 04:29

本文选题：Parlay + X　；参考：《南京邮电大学》2014年硕士论文

【摘要】：开放业务接口是NGN的一大优势，为提高电信运营商的效益和用户网络体验，开放业务接口成为业内关注和研究的热点。广大Web应用开发者可通过Web接口使用电信网络的能力，也加快了第三方服务和应用提供商的开发速率。Parlay X架构的出现引起了广泛的注意，通过Web ServiceAPIs为应用提供网络会话控制能力。首先，介绍了NGN多业务通信与交换平台的关键技术的研究背景以及研究目的和意义，，阐述了SOA相关技术的发展历程，结合当前研究现状提出本文的研究方向。其次，综述了NGN多业务通信与交换平台的关键技术所需要的技术和理论思想，对ParlayX网关过载控制技术进行了研究，并结合前人研究成果提出了一种基于消息的过载控制算法。该算法结合Parlay X架构特点和消息类型，对消息的进行优先级设置，并结合负载均衡和接入控制算法，利用相关过载变量，控制消息发送数量，从而对网关进行过载控制。仿真实验表明，相比于传统的过载控制算法，本算法能保证更大的吞吐量和更少的平均服务时间。最后，在上述研究的基础上，分析了Parlay X所在环境的总体架构，网关接口，详细设计了Parlay X网关所需的各个模块，并对网关的实现进行详细介绍。之后，以VS2010为开发平台，使用C++开发语言，MySql作为数据库，实现并测试了该系统。
[Abstract]:Open service interface is one of the advantages of NGN. In order to improve the efficiency of telecom operators and user network experience, open service interface has become the focus of attention and research in the industry. The ability of Web application developers to use telecommunication networks through Web interfaces has also accelerated the development rate of third-party services and application providers. Parlay X architecture has attracted widespread attention. Web ServiceAPIs provides network session control for applications. Firstly, this paper introduces the research background, purpose and significance of the key technologies of NGN multi-service communication and switching platform, expounds the development course of SOA related technologies, and puts forward the research direction of this paper combined with the current research situation. Secondly, this paper summarizes the key technologies and theoretical ideas of NGN multi-service communication and switching platform, studies the overload control technology of ParlayX gateway, and proposes a message-based overload control algorithm combined with the previous research results. Combined with the characteristics of Parlay X architecture and message types, the algorithm sets the priority of messages, and combines the load balancing and access control algorithms, using the relevant overload variables to control the number of messages sent, so as to control the gateway overload. Simulation results show that compared with the traditional overload control algorithm, the proposed algorithm can guarantee greater throughput and less average service time. Finally, on the basis of the above research, the overall architecture and gateway interface of Parlay X are analyzed, and the modules needed for Parlay X gateway are designed in detail, and the implementation of the gateway is introduced in detail. After that, the system is implemented and tested with VS2010 as the development platform and C development language, MySQL, as the database.
【学位授予单位】：南京邮电大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TP393.09;TN915.05

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