支持普适服务的新一代网络传输层构架  

New Transport Layer Architecture for Pervasive Service

作　　者：杨冬[1] 李世勇[1] 王博[1] 张宏科[1] 

机构地区：[1]北京交通大学电子信息工程学院下一代互联网互联设备国家工程实验室,北京100044

出　　处：《计算机学报》2009年第3期359-370,共12页Chinese Journal of Computers

基　　金：国家"九七三"重点基础研究发展规划项目基金(2007CB307100);(B08002);长江学者和创新团队发展计划(IRT0707)资助~~

摘　　要：新一代网络没有准确定义,但普遍共识是提供全分组网络和普适服务.其中分组网络一般认为采用IP分组,但普适服务仍不清晰.3G、4G中称"泛在服务";NGI、NGN中强调无缝融合电信网和互联网服务;计算机界类似的概念是"普适计算";IEEE普适服务会议汇聚各种思想,首次提出了"普适服务"的模糊概念.虽然上述研究对普适服务的定义并不统一,但普遍共识是:多样化的服务种类、多样化的网络接入.文中分析传输层在新一代网络设计中的重要地位,以提供普适服务为目标,通过多连接抽象表示服务多样化、多路径抽象表示接入多样化,给出符合新一代网络要求的传输层构架.基于这一构架,可以提高网络的QoS支持、安全可靠性、移动性、可控可管性.文中通过理论分析和原型实现证明了新构架的正确性和可行性.There are no uniform definitions of the new generation network, and most researches tend to construct new packet network and provide pervasive service. New packet network may well be IP, but the target of pervasive service is not clear. 3G and 4G call it ubiquitous service; NGI and NGN emphasize service merging; Computer world uses the concept pervasive computing; IEEE International Conference on Pervasive Services brought forward pervasive service firstly. Thought there are many different researches about pervasive service, the most important goal is to provide different kinds of services and accesses. This paper introduces a new transport layer architecture based on multi-connection and multi-path mapping for pervasive service. The new architecture could improve QoS, reliable, security, mobility and controllable of new network. Theory models analysis and prototype implement prove its correctness and feasibility.

关 键 词：普适服务 传输层 多连接 多路径 映射 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]