Tandem-free VoIP conferencing: a bridge to next-generation networks
Tandem-free VoIP conferencing: a bridge to next-generation networks
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无串联 VoIP 会议：通往下一代网络的桥梁
DOI：
10.1109/mcom.2003.1200114
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发表时间：
2003
期刊：
影响因子：
--
通讯作者：
R. Rabipour
中科院分区：
文献类型：
--
作者：
Paxton J. Smith;P. Kabal;M. Blostein;R. Rabipour
本文综述了IP语音网络中的电话会议方法。会议的考虑因素包括感知的质量、可扩展性、可控性和兼容性。用于会议的架构范围从集中式网桥到全网状。当混合多个说话者并进行串联编码操作时，与压缩语音一起使用的集中式会议桥会降低语音质量。当与会者数量较多时，全网状和组播解决方案(在端点混合)是不合适的。本文讨论了一种混合解决方案，它结合了免汇接桥接(网桥选择和转发分组)和端点混合。
This article surveys approaches to teleconferencing in voice over IP networks. The considerations for conferencing include perceived quality, scalability, control, and compatibility. Architectures used for conferencing range from centralized bridges to full mesh. Centralized conference bridges used with compressed speech degrade speech quality when multiple talkers are mixed and subjected to tandem coding operations. Full mesh and multicast solutions (mixing at the end-points) are inappropriate when the number of conferees is large. This article discusses a hybrid solution that incorporates tandem-free bridging (the bridge selects and forwards packets) and endpoint mixing.