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本文首先提出了软交换网中信令网关的应用场合,并对信令网关所用到的各种协议进行了详细的分析和比较,归纳出信令网关各种协议适用的组网模式,最后提供了信令网关在各种应用场景、各种设置方案情况下的协议选择建议. 相似文献
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We introduce an efficient protocol for end-to-end handoff management in heterogeneous wireless IP-based networks. The protocol
is based on the stream control transmission protocol (SCTP), and employs a soft-handoff mechanism that uses end-to-end semantics
for signaling handoffs and for transmitting control messages. The design goal of this protocol is twofold—first, to reduce
the home registration delay, and, second, to eliminate the tunnelling cost which exists in current proposals, such as Mobile
IP and its derivatives. Furthermore, we propose successive enhancements to the initial mobility management framework for achieving
better scalability. We present strong analytical and simulation-based results that show performance improvements over existing
approaches.
Antonios Argyriou is a Ph.D. candidate in the school of electrical and computer engineering, Georgia Institute of Technology. He received his
M.S. degree from the Georgia Institute of Technology in 2003, and the diploma from Democritus University of Thrace in 2001,
both in electrical and computer engineering. His research interests spawn in all aspects of computer networking while specific
interests include wireless networks and multimedia communications. He is a student member of IEEE and ACM.
Vijay Madisetti is a professor of electrical and computer engineering at the Georgia Institute of Technology. He splits his time among teaching,
research and entrepreneurship. His interests are design, prototyping, and packaging of electronic systems, virtual prototyping,
embedded software systems, and computer networks. He obtained his Ph.D. in electrical engineering and computer science from
the University of California at Berkeley. He is a member of the IEEE and the Computer Society. 相似文献
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简要介绍SCTP和TLS协议,探讨TLS应用于SCTP的特点及要注意的问题,给出简单的演示程序,演示了基于SCTP的TLS应用,最后得出结论:某些具体应用并不需要对SCTP关联中的流分别应用TLS协议,在单一流中的协商的TLS环境可简单的应用到其他流。 相似文献
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运营商传统电路交换网络发展遇到瓶颈,IP承载网技术发展更加成熟,移动核心网电路域的VoIP演进正逐步推进。文章对核心网VoIP演进带来的变化及承载网、核心设备如何保障语音业务质量、安全等进行了探讨。 相似文献
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In this paper we propose a novel end-to-end architecture for H.264 unicast video streaming over the Internet. The proposed video streaming architecture is based primarily on a new transport layer protocol, the stream control transmission protocol (SCTP). We show that the network-friendly specification of H.264, and the novel technical characteristics of SCTP, when coupled together are able to provide a highly adaptive and flexible system for unicast video streaming. More specifically, we develop algorithms that handle at the transport layer the following functions concerning video packet transmission: retransmission policy, packet prioritization, implicit receiver feedback. We combine the above algorithms with an R-D optimization strategy at the encoder, that provides more options when adapting to bandwidth variations. This combined optimization strategy leads to more options concerning the streaming parameters. Finally, with simulation results we prove that our system is capable of maintaining good perceptual quality and TCP-friendliness under various loss conditions.
An early version of this paper appeared in CCNC 2004. 相似文献
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随着通信终端上多个网络接口的实现成为可能,并行多路径传输因其具有较高的传输效率而成为研究的热点。本文设计实现了一种SCTP流与路径绑定的并行多路径传输解决方案,将不同的流映射到合适的路径上进行传输,从而解决多路径接收端数据分组乱序的问题,提高网络传输的吞吐量。 相似文献
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付航 《电信工程技术与标准化》2013,(7):15-18
本文主要针对目前中国移动ATU拉网测试过程中频繁出现因信令分组丢失导致的异常事件,深入研究了传输侧SCTP分组丢失所带来的影响,并从传输和无线侧两方面提出了相关优化方案,取得了较好的效果,可以为各省公司TD-SCDMA网络优化借鉴。 相似文献
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SCTP在工业以太网通信技术中的应用研究 总被引:1,自引:1,他引:0
随着以太网技术的发展和广泛应用,在自动化领域中,工业以太网正在成为工业控制网络的主流技术。但是从信息安全的角度,现有的工业以太网技术在数据传输的可靠性、可用性、安全性等方面面临着巨大的挑战。SCTP是由IETF提出的新一代构架于IP层之上的通用IP传输协议。与TCP和UDP相比,SCTP提供了多宿、多流、部分可靠传输和用于提高安全性能的Cookie机制等新特性,更能够满足工业以太网技术在信息传输上的要求。因此,研究SCTP应用于工业以太网通信技术具有重要的研究意义。 相似文献
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