实际应用表明，基于MPEG - 4标准和ip组播技术的系统具有更高的压缩率、更高的网络带宽利用率等特点。
Practical application indicate, sow on the basis of MPEG-4 standard and IP multicast system of technology have in high compression rate, high network width utilization ratio, etc. characteristic.
采用IP组播技术的群组通信将是包交换通信网络中非常重要的一类应用。
Group communication based on IP-multicast technology will be an important part of packet switch networks.
组播技术是一种新的、高效的网络传输机制。
Multicast is a new technology with high efficiency for network transport.
论述了组播传输技术的原理和相关的路由协议，设计了一个视频信息的采集系统，分析了实时视频信息组播传输网络。
The paper describes the principle of multicast and its route protocol, designs a system of collecting video data, and analyses a network of real time video data transmission.
网络编码是改善组播通信性能的一种新技术。
Network coding is a new technique which can improve the performance of multicast communications.
用组播技术进行网上视频广播可以节约带宽和减轻服务器的负载，但往往由于网络互联设备不支持组播功能而不能实现。
Network video broadcast with multicast can save bandwidth and reduce the load of server, but it often can't be realized because the equipments of interlinking networks don't support multicast.
因此，研究组播覆盖网络技术有较高理论与现实意义。
So there is important significance in research on Multicast Overlay Network technology in the theory and the practice.
同时，也对无线移动通信网络环境下的组播技术提出更多需要考虑的因素。
At the same time, some factors which should be taken into account in multicast under wireless and mobile communication networks are put forward.
通过比较三种不同的网络通信方式，阐述IP组播技术在嵌入式视频监控系统网络传输方面的优势。
The paper explains the advantages of IP multicast technology in the network transmission of embedded video monitoring system through comparing three kinds of different network communication ways.
IP组播技术实现了IP网络中点到多点的高效数据传输， 它能弥补单播通信和广播通信的不足。
IP multicast technique realizes efficient data transmission from one point to multiple points in IP network, and remedies the defects of unicast and broadcast communication.
移动组播是移动互联网络技术的一个研究热点，但现有移动组播方案存在着组播中断时间长、协议开销大等问题。
Mobile multicast is a research hotspot of mobile network, but most of mobile multicast schemes suffer from the long multicast disruption time and heavy protocol cost.
未来，可以通过降低光网络组播树的粒度来降低光组播的使用门槛，这将有利于促进组播技术的更广泛使用。
In the future, multicast technologies can be promoted through lowering the threshold for multicast applications, that is, decreasing the granularity for an optical network multicast tree.
组播是面向群组接收者的首选网络通信技术，但缺乏安全机制限制了组播在各种网络业务中的广泛应用。
Multicast is the current prime network technique focusing on the group receivers, but the absence of security mechanism has limited its application in various network services.
由于组播技术能够最大限度的缓解网络瓶颈，所以被广泛的应用于这些高带宽的应用之中。
Because the multicast technique can alleviate the bottleneck of the network, it was used extensively in the high bandwidth applications.
可以说，组播已经成为新一代网络不可缺少的关键技术。
Multicast has become an indispensable technology of the next generation of Internet.
在基于查询的无线传感器网络中，组播技术的应用可大幅减少传感器节点的能量消耗，延长节点寿命。
By applying multicast technology, the energy consumption can be significantly reduced, and the life time of nodes can be extended in query-based wireless sensor networks.
采用IP组播技术实现多方通信，大大减少了网络带宽的开销。
The system based on IP multicast to implement multipoint communication requires less bandwidth.
简要介绍了IPTV系统中的视频编码、数字版权管理、内容分发网络、组播、机顶盒等关键技术。
So the article was emphasized on some key techniques such as Coding technique, DRM, CDN, Multicast, STB about IPTV system.
这些应用的出现带来了带宽的急剧消耗和网络拥塞等问题，而IP组播是有效支持这些应用的重要技术。
The emergence of these applications has brought a sharp bandwidth consumption and network congestion and so on. IP multicast is an important mechanism which can support these applications efficiently.
而上述业务可以通过组播技术在不改变网络结构的前提下，尽可能的缓解网络带宽消耗过大的压力。
They can use multicast technology, which will not change network structure, to reduce the pressure of too much bandwidth consumption.
组播技术能避免相同信息在网络上的重复发送，高效的利用了网络带宽资源。
ALM can avoid the same message be sent for many times and use of the Internet resources efficiently.
组播技术采用群组发送的方式，用路由器来复制数据包，保证任何时候每条链路中只有一份数据包，因此节约了网络带宽。
Multicast technology applies the method of group transmissions, using Router to copy data packages, it promised only one data package in every link at any time, and saved bandwidth.
组播覆盖网络技术可以在非完全组播网络中实现组播业务，并具有较高数据传输效率。
Multicast Overlay Network technology is able to carry out multicast session in Partial-multicast Network, and can transport data with high efficiency.
在本文中，笔者首先对已有IP组播控制技术分析，针对城域以太网的二层网络对IP组播控制技术进行研究。
This will cause multicast service deployed more difficulty on Metro-E network. In this paper, I analyze and study IP multicast control technology on L2 Metro-E network.
在本文中，笔者首先对已有IP组播控制技术分析，针对城域以太网的二层网络对IP组播控制技术进行研究。
This will cause multicast service deployed more difficulty on Metro-E network. In this paper, I analyze and study IP multicast control technology on L2 Metro-E network.
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