SBIR Phase II: Multi-Party Peer-to-Peer V3oIP

SBIR 第二阶段：多方点对点 V3oIP

• 批准号: 0750558
• 负责人: Milton Chen
• 金额: $ 50万
• 依托单位: VSee Lab
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2008
• 资助国家: 美国
• 起止时间: 2008-01-15 至 2009-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0750558&HistoricalAwards=false
• 关键词: SBIR; Phase; II; Multi; Party

This SBIR Phase II project extends the PI's Phase I to create a theoretical bandwidth and latency efficient multimedia streaming framework for communication. The ultimate goal is a software system that achieves less than 150 msec one-way end-to-end delay (the typical delay of telephone) for a 10-30 site meeting supporting wideband audio, full motion video, and application/desktop sharing over broadband networks. The industry norm to achieve multiparty video/web conferencing is the client-server architecture. Client-server architecture is expensive to deploy due to the number of servers required and the bandwidth required at the server nodes. Peer-to-peer approaches have been successfully used for large scale file sharing. However, peer-to-peer approaches have been relatively unexplored to scale the number of participants in a single meeting. This research combines real-time network sensing and the domain knowledge of video and web conferencing to create a scalable and cost effective peer-to-peer streaming algorithm. The maximum number of sites in a multiparty videoconferencing is typically 4-6. Given the limited screen resolution of a laptop/desktop, methods for showing 10-30 full motion video and a shared application are relatively unexplored. Poor user experience from inadequate user interface is a major barrier to the adoption of previous video/web conferencing tools. This research combines recent human factor discoveries to create a novel user interface that intuitively supports multiparty communication.Since AT&T invented videoconferencing in 1927, videoconferencing has been one commercial failure after another. The PI's previous research suggests that such failures are rooted in inadequate knowledge of the human factor requirements of videoconferencing. Based on previous research, they are developing a commercial software system which will make substantial impact on telework, remote education, and humanitarian operations. This project aims to create a low-cost peer-to-peer alternative to client-server architectures for large scale meetings. If successful, the architecture proposed in this effort could have significant commercial impact.

该 SBIR 第二阶段项目扩展了 PI 的第一阶段，以创建理论上的带宽和延迟高效的多媒体流通信框架。最终目标是一种软件系统，能够在 10-30 人的现场会议中实现低于 150 毫秒的单向端到端延迟（电话的典型延迟），支持宽带网络上的宽带音频、全动态视频和应用程序/桌面共享。 实现多方视频/网络会议的行业规范是客户端-服务器架构。 由于所需的服务器数量和服务器节点所需的带宽，客户端-服务器架构的部署成本很高。点对点方法已成功用于大规模文件共享。然而，相对而言，还没有探索过点对点方法来扩大单次会议的参与者数量。 这项研究结合了实时网络传感以及视频和网络会议的领域知识，创建了一种可扩展且具有成本效益的点对点流算法。多方视频会议中的最大会场数量通常为 4-6 个。鉴于笔记本电脑/台式机的屏幕分辨率有限，显示 10-30 个全动态视频和共享应用程序的方法相对尚未探索。用户界面不足导致的用户体验不佳是采用以前的视频/网络会议工具的主要障碍。这项研究结合了最新的人为因素发现，创建了一种新颖的用户界面，直观地支持多方通信。 自 1927 年 AT&T 发明视频会议以来，视频会议经历了一次又一次的商业失败。 PI 之前的研究表明，此类失败的根源在于对视频会议的人为因素要求了解不足。根据之前的研究，他们正在开发一种商业软件系统，该系统将对远程办公、远程教育和人道主义行动产生重大影响。 该项目旨在为大型会议创建一种低成本的点对点替代客户端-服务器架构。如果成功，这项工作中提出的架构可能会产生重大的商业影响。