NeTS: Medium: Collaborative Research: Mobile Content Sharing Networks: Theory to Implementation

NeTS：媒介：协作研究：移动内容共享网络：理论到实现

• 批准号: 1065444
• 负责人: Jie Wu
• 金额: $ 45.7万
• 依托单位: Temple University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2011
• 资助国家: 美国
• 起止时间: 2011-07-01 至 2016-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1065444&HistoricalAwards=false
• 关键词: NeTS; Medium; Collaborative; Research; Mobile

The last few years have witnessed an explosive growth in the popularity and capabilities of mobile handheld devices such as smart-phones, tablets, and laptops. The rapidly expanding computational power of these portable devices has enabled their users to access, process, and share content anytime, anywhere. However, these devices have already put significant stress on many of today's 3G/4G cellular networks, which, if left unaddressed, will result in increasingly poor quality-of-service and user experience in the future. To address this problem, the project investigates how to exploit the key attributes of mobile content sharing environments to dramatically increase network performance. Preliminary studies show that jointly utilizing the wireless channel and mobility can yield greater gains than even the sum of exploiting mobility and the channel independently. In this case, the whole is greater than the sum of its parts! Thus, the main focus of this research is to (i) develop the analytical foundation for double opportunism - i.e., joint exploitation of the wireless channel and mobility-considering the practical realities of the wireless environment for content distribution networks; (ii) develop low-complexity algorithms, heuristics, and distributed protocols that are provably efficient; (iii) investigate the impact of imperfect knowledge on performance; (iv) validate the results via testbed deployment.The project is expected to lead to fundamental breakthroughs in the design and performance of wireless networks for content sharing. The algorithms and protocols developed by exploiting double opportunism, and the theories underlying them, will have a significant impact on the wireless industry.

在过去的几年中，移动手持设备（例如智能手机，平板电脑和笔记本电脑）的受欢迎程度和能力的爆炸性增长。这些便携式设备的快速扩展的计算能力使他们的用户可以随时随地访问，处理和共享内容。但是，这些设备已经对当今的许多3G/4G蜂窝网络施加了巨大的压力，如果没有解决，这些网络将来会导致服务质量越来越差和用户体验。为了解决这个问题，该项目研究了如何利用移动内容共享环境的关键属性，以显着提高网络性能。初步研究表明，与独立利用移动性和独立通道的总和相比，共同利用无线通道和迁移率可以产生更大的收益。在这种情况下，整体大于其部分的总和！因此，这项研究的主要重点是（i）建立双重机会主义的分析基础 - 即，对无线渠道的联合利用，并考虑到无线环境对内容分配网络的实际现实情况； （ii）开发低复杂性算法，启发式方法和分布式方案，这些方案可有效； （iii）研究不完美知识对绩效的影响； （iv）通过测试床的部署验证结果。预计该项目将在无线网络的设计和性能中取得基本突破，以进行内容共享。通过利用双重机会主义以及它们为基础的理论开发的算法和协议将对无线行业产生重大影响。