CNS: NETS: SMALL: Collaborative research: Collision: Friend or Foe?

CNS：NETS：小型：合作研究：碰撞：朋友还是敌人？

• 批准号: 0914955
• 负责人: Saswati Sarkar
• 金额: $ 24.99万
• 依托单位: University of Pennsylvania
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2009
• 资助国家: 美国
• 起止时间: 2009-08-01 至 2012-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0914955&HistoricalAwards=false
• 关键词: CNS; NETS; SMALL; Collaborative; research

This award is funded under the American Recovery and Reinvestment Act of 2009 (Public Law 111-5). Traditionally collisions of transmitted packets in wireless networks have been treated as a hindrance. If however the information contained in the packets is recovered even after the packets collide, significantly higher transmission rates can be attained in wireless systems. The project is developing a novel network-friendly approach for resolving collisions. The relevant information is being extracted from collided packets through sophisticated signal processing and higher layer resource allocation schemes that function in conjunction with the physical layer techniques. The signal processing techniques recover the relevant information by exploiting source of diversity that are present in a collision, such as small user delays and carrier frequency offsets. The higher layer resource allocation techniques maximize the throughput and minimize the delay in end-to-end delivery of information through the exploitation of collision resolution capabilities at the physical layer. This research will lead to a quantum leap in performance of wireless systems which will in turn facilitate a plethora of advanced applications such as high quality multimedia transmission over wireless networks, rescue and recovery operations, etc. Results will be disseminated through (i) publications of scholarly papers in premier journals and conferences and available through the world-wide-web, and (ii) direct interactions with wireless industry and non-profit organizations which will facilitate the design of wireless systems that can be effectively used in daily lives.

该奖项是根据2009年《美国复苏与再投资法》（公法111-5）资助的。传统上，无线网络中传输数据包的碰撞被视为障碍。但是，如果即使在数据包相撞后，数据包中包含的信息也会被恢复，则在无线系统中可以获得更高的传输速率。该项目正在开发一种新颖的网络友好方法来解决碰撞。相关信息是通过复杂的信号处理从相撞的数据包中提取的，并且与物理层技术结合起作用的更高层资源分配方案。信号处理技术通过利用碰撞中存在的多样性来源（例如小用户延迟和载流频率偏移）来恢复相关信息。高层资源分配技术通过利用物理层的碰撞分辨率功能来最大化吞吐量，并最大程度地减少信息端到端交付信息的延迟。这项研究将导致无线系统性能的量子飞跃，反过来促进了许多高级应用，例如高质量的多媒体传输，无线网络，救援和恢复操作等。结果将通过（i）（i）（i）在（i）出版的主要期刊和会议上与世界各地的互动（II）互动（II）互动（II）互动（II）互动的互动来分散，并在II）中获得无效的互动。可以在日常生活中有效使用的无线系统。