NeTS-NBD: Simulcast Enhanced Wireless Networks

NeTS-NBD：联播增强型无线网络

• 批准号: 0626863
• 负责人: Tan Wong
• 金额: --
• 依托单位: University of Florida
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2006
• 资助国家: 美国
• 起止时间: 2006-08-15 至 2010-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0626863&HistoricalAwards=false
• 关键词: NeTS; NBD; Simulcast; Enhanced; Wireless

NeTS-NBD Simulcast Enhanced Wireless NetworksAward 0626863Tan F. Wong and John M. SheaInformation theory predicts that it is more efficient to simultaneously transmit (simulcast) signals carrying independent information to multiple users on a wireless channel than it is to time-, frequency- or code-share the channel among the users. In current wireless networks, this simulcasting capability of the wireless medium is not utilized. This research aims to develop practical simulcasting transmission techniques that exploit such hidden resources in both infrastructure and ad hoc networks. The application of simulcasting at the physical layer has many impacts on the higher-layer protocols. Under a cross-layer framework, the use of simulcasting in wireless networks is investigated through analysis, simulation, and experimentation. The expected analytical results will be used to investigate the performance limits of simulcasting. Simulation results will be used to test protocol designs and evaluate performance under more realistic models for channel, traffic, mobility, etc. A heterogeneous ad hoc network (HANET) testbed will be developed to emulate simulcasting in real networks.The increasing demand for wireless services has resulted in significant pressure to develop new approaches to more efficiently utilize bandwidth resources. The simulcasting techniques developed in this project have the potential to significantly improve efficiency in cellular and wireless local area networks. Through this project, engineering students learn to design communication systems by understanding the analytical limitations, evaluating performance through simulations, and deploying and testing new protocols on the HANET testbed. The research results will be disseminated through the Internet and publications in conferences and technical journals.

联合广播增强型无线网络谭锋和约翰M.谢恩信息理论预测，在无线信道上向多个用户同时传输（联合广播）携带独立信息的信号比在用户之间共享信道的时间、频率或代码更有效。在当前的无线网络中，没有利用无线媒体的这种同时播放能力。本研究旨在开发实用的同播传输技术，利用基础设施和自组织网络中的这些隐藏资源。在物理层的同时播的应用对更高层的协议有很多影响。在跨层框架下，通过分析、仿真和实验研究了无线网络中同时广播的使用。预期的分析结果将用于研究同时广播的性能限制。仿真结果将用于测试协议设计，并在更现实的信道、流量、移动性等模型下评估性能。开发异构自组网（HANET）测试平台，模拟真实网络中的同播。对无线服务日益增长的需求造成了开发更有效地利用带宽资源的新方法的巨大压力。本项目开发的同播技术具有显著提高蜂窝和无线局域网效率的潜力。通过这个项目，工程专业的学生将学习如何设计通信系统，了解分析的局限性，通过模拟评估性能，并在HANET测试平台上部署和测试新的协议。研究结果将通过互联网以及会议和技术期刊的出版物传播。