CNS:NeTS: SMALL: Collaborative research: Collision: Friend or Foe

CNS:NetS: 小: 合作研究: 碰撞: 朋友还是敌人

• 批准号: 0916947
• 负责人: Youngmoo Kim
• 金额: $ 24.99万
• 依托单位: Drexel University
• 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=0916947&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年美国复苏和再投资法案（公法111-5）资助的。传统上，无线网络中传输数据包的冲突被视为一种障碍。然而，如果包含在分组中的信息即使在分组冲突之后也被恢复，则在无线系统中可以获得显著更高的传输速率。该项目正在开发一种新的网络友好的方法来解决冲突，通过复杂的信号处理和与物理层技术一起发挥作用的高层资源分配方案，从冲突的数据包中提取相关信息。信号处理技术通过利用存在于冲突中的分集源（诸如小的用户延迟和载波频率偏移）来恢复相关信息。更高层的资源分配技术通过在物理层利用冲突解决能力来最大化吞吐量和最小化端到端信息传递中的延迟。这项研究将导致无线系统性能的巨大飞跃，从而促进大量的高级应用，如无线网络上的高质量多媒体传输、救援和恢复操作、研究结果将通过以下方式传播：（i）在顶级期刊和会议上发表学术论文，并通过万维网提供;（ii）与无线行业和非营利组织直接互动，这将促进设计可有效用于日常生活的无线系统。