NeTS: Small: Collaborative Research: Caching and Coding for Media Delivery in Next Generation Wireless Networks

提供语音、网络、云计算、社交网络、视频点播、直播和增强现实等服务需要能够在全球范围内处理大量数据，这些数据必须得到有效的处理、存储和交付给最终用户。传递媒介正在从有线转向无线；据预测，到2018年，移动流量将占总数据流量的近三分之二，到2019年，视频流量将占移动数据流量的近四分之三。这给有限的无线带宽带来了巨大的压力，需要采用革命性的方法来利用网络中可用的替代资源。由于成本的降低和存储容量的丰富，本项目考虑联合设计存储和传输方案，以便在下一代异构无线网络上有效地提供基于视频的服务，具体考虑到视频内容和无线信道的独特性。为了完成这一雄心勃勃的任务，这项工作被组织成三个研究重点，以开发用于视频传输的下一代无线缓存网络：-重点1：缓存辅助视频传输的基本限制和实用方案：这一重点考虑了视频应用的特性及其对高效和健壮的缓存和传输技术的相关要求，特别是适合此类需求的技术。-推力2：在未来缓存辅助异构无线网络上的视频传输：该推力建立在推力1中开发的基础上，扩展了缓存辅助视频传输方案，以考虑和利用异构无线信道条件和网络拓扑结构。-推力3：技术验证和实验：此推力包括概念验证原型工作，以验证项目中开发的设计。该项目活动产生的更广泛的影响将包括无线信道视频传输机制的显著增强，超越目前的技术水平。这一点至关重要，因为截至2012年底，全球移动流量总量约为每月885拍字节，预计将继续增长。随着存储容量变得越来越便宜，本项目开发的技术将能够通过牺牲内存换取带宽来缓解频谱紧张。行业外展和传播将通过贝尔实验室诺基亚和其他工业合作伙伴在纽约大学完成。在提高女性和少数族裔在STEM领域的参与和指导方面，pi致力于并拥有出色的记录。这笔赠款将有助于支持这些努力。

Providing services such as voice, web, cloud computing, social networking, video on demand, live streaming and augmented reality requires the ability to globally handle massive amounts of data, which must be efficiently processed, stored, and delivered to end users. The medium of delivery is shifting from wireline to wireless; it is predicted that mobile traffic will account for nearly two-thirds of the total data traffic by 2018 and nearly three fourths of the mobile data traffic will be video by 2019. This puts a tremendous pressure on the limited wireless bandwidth and necessitates revolutionary approaches that exploit alternative resources available in the network. Motivated by the decreasing cost and abundance of storage capacity, this project considers joint design of storage and transmission schemes for the efficient delivery of video-based services over next generation heterogeneous wireless networks, by specifically taking into account the unique nature of video content and the wireless channel.In order to accomplish this ambitious task, the work is organized into the three research thrusts that develop next generation of wireless caching networks for video delivery:-Thrust 1: Fundamental limits and practical schemes for cache-aided video delivery:This thrust takes into account properties of video applications and their associated requirements for efficient and robust caching and delivery techniques particularly suited for such demands. -Thrust 2: Video delivery over future cache-aided heterogeneous wireless networks:This thrust builds upon the foundations developed in Thrust 1 and expands the cache-aided video delivery schemes to consider and take advantage of heterogeneous wireless channel conditions and network topologies. - Thrust 3: Technology validation and experimentation: This thrust includes proof-of-concept prototyping efforts to validate the designs developed in this project.The broader impacts resulting from the activity in this project will include significant enhancement of video delivery mechanisms over wireless channels beyond the current state of the art. This of key importance since the total global mobile traffic was about 885 petabytes per month at the end of 2012, and is expected to keep increasing. As the storage capacity becomes cheaper, the techniques developed in this project will be able to alleviate the spectrum crunch by trading off memory for bandwidth. Industry outreach and dissemination will be done through Bell Labs Nokia and other industrial partners at NYU. The PIs are committed to and have an excellent track record in increasing participation of as well as mentoring women and underrepresented minorities in the STEM fields. This grant will help to support these efforts.