SBIR Phase I: Microcast: Cooperative Video Delivery to Mobile Devices

SBIR 第一阶段：Microcast：向移动设备协作视频传输

• 批准号: 1315106
• 负责人: Anh Le
• 金额: $ 15万
• 依托单位: Shoelace Wireless, Inc.
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2013
• 资助国家: 美国
• 起止时间: 2013-07-01 至 2014-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1315106&HistoricalAwards=false
• 关键词: SBIR; Phase; Microcast; Cooperative; Video

This Small Business Innovation Research Program (SBIR) Phase I project will develop a novel cooperative networking technology for delivering video to a group of mobile devices within proximity of each other. Cellular providers cannot currently meet the demand for mobile video, which grows faster than wireless access bandwidth. The problem is particularly challenging when a large number of users in a cell access the same content at roughly the same time, as it is the case during real-time popular events. The proposed solution allows a group of mobile devices to leverage device-to-device connections and to use all cellular connections in the group in a cooperative manner, so as to efficiently utilize resources and adapt to wireless variations. Each device can use simultaneously two network interfaces: cellular to connect to a remote server and download parts of the content, and another (WiFi or Bluetooth) to connect to the rest of the group and exchange those parts. The technical novelty lies in the design of the cooperative network architecture as well as in the algorithms in each building block. As a result, the common rate from the source to each user can increase by a factor up to the group size. The broader impact/commercial potential of this project stems from the value proposition it brings to all players involved in mobile video delivery. The proposed technology enables mobile users, within proximity of each other, to download a video faster and consume less cellular bandwidth. The end result is not only a better user experience (faster download, reduced cost of data, as well as synchronous viewing and easy sharing) but also access bandwidth savings with direct benefits to the entire ecosystem including cellular carriers, content providers, device manufacturers, and application developers. Furthermore, the solution does not require changes in the infrastructure and can be implemented as a mobile application, thus can be readily adopted. With the unprecedented growth in mobile devices and services, this project has potential for significant social and economic impact. Example customer segments include the following: young people who want to share video, college athletic departments that provide content to fans in the stadiums, cellular providers who want to improve subscribers? experience while saving access bandwidth, and online education in remote areas with poor wireless connectivity.

该小型企业创新研究计划(SBIR)第一阶段项目将开发一种新的协作网络技术，用于将视频传输到彼此相邻的一组移动设备。移动运营商目前无法满足移动视频的需求，移动视频的增长速度快于无线接入带宽。当一个小区中的大量用户几乎同时访问相同的内容时，这个问题尤其具有挑战性，就像实时流行活动期间的情况一样。建议的解决方案允许一组移动设备利用设备到设备的连接，并以协作的方式使用组中的所有蜂窝连接，从而高效地利用资源并适应无线变化。每台设备可以同时使用两个网络接口：蜂窝连接到远程服务器并下载部分内容，另一个(WiFi或蓝牙)连接到组中的其余部分并交换这些部分。技术上的创新之处在于协同网络体系结构的设计以及各个构件中的算法。因此，从源到每个用户的公共速率可以增加高达组大小的一个因素。该项目更广泛的影响/商业潜力源于它为参与移动视频交付的所有参与者带来的价值主张。拟议的技术使移动用户能够在彼此邻近的情况下更快地下载视频，并消耗更少的蜂窝带宽。最终结果不仅是更好的用户体验(更快的下载、更低的数据成本以及同步观看和轻松共享)，而且还能节省接入带宽，直接惠及整个生态系统，包括蜂窝运营商、内容提供商、设备制造商和应用程序开发商。此外，该解决方案不需要改变基础设施，并且可以作为移动应用实现，因此可以很容易地被采用。随着移动设备和服务的空前增长，该项目有可能产生重大的社会和经济影响。例如，客户群包括：想要分享视频的年轻人，在体育场向球迷提供内容的大学体育部门，想要增加订阅者的移动运营商？体验节省访问带宽，并在无线连接较差的偏远地区进行在线教育。