NeTS: Small: Foundations of Energy Efficient Wireless Multimedia Broadcasting

NetS：小型：节能无线多媒体广播的基础

• 批准号: 1116134
• 负责人: Jie Luo
• 金额: $ 34.98万
• 依托单位: Colorado State University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2011
• 资助国家: 美国
• 起止时间: 2011-08-01 至 2015-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1116134&HistoricalAwards=false
• 关键词: NeTS; Small; Foundations; Energy; Efficient

Wireless multimedia broadcast has been the central of human entertainments for a century. While the broadcasting signaling is being transformed to digital, its infrastructure is still incapable of supporting the full potential of wireless digital broadcast. This project develops a comprehensive framework to enable scalable and adaptive wireless multimedia broadcasting for an envisioned cellular-type infrastructure, as well as for infrastructures in transitional stages. The project consists of three components: 1) an adaptive channel coding scheme, 2) a stochastic power control and antenna beamforming algorithm, and 3) a feedback channel medium access control protocol. In the first step, the research develops an adaptive coding scheme to enable efficient and scalable broadcast communication over dynamic wireless channels with minimum channel information at the transmitters. In the second step, the research develops a stochastic power control and antenna beamforming framework to optimize energy efficiency of the broadcast system under communication throughput and delay constraints. In the third step, the research develops a medium access control protocol to feedback necessary channel information without sacrificing system scalability using a minimum amount of feedback channel bandwidth. This project also develops a demonstration system in wireless computer networks.

一个世纪以来，无线多媒体广播一直是人类娱乐的中心。虽然广播信号已转换为数字，但其基础架构仍然无法支持无线数字广播的全部潜力。该项目开发了一个全面的框架，以启用可扩展和自适应的无线多媒体广播，以构成设想的蜂窝类型基础架构以及过渡阶段的基础架构。该项目由三个组成部分组成：1）自适应通道编码方案，2）随机功率控制和天线束构成算法，以及3）反馈通道中型访问控制协议。在第一步中，研究开发了一种自适应编码方案，以通过发射机的最小通道信息在动态无线通道上实现高效且可扩展的广播通信。在第二步中，研究开发了一个随机功率控制和天线边界框架，以优化在通信吞吐量和延迟约束下广播系统的能源效率。在第三步中，研究开发了一个中等访问控制协议，以使用最少的反馈通道带宽牺牲系统可伸缩性，而无需牺牲系统的可伸缩性。该项目还开发了无线计算机网络中的演示系统。