Collaborative Research: A Universal Cooperative Communication System-On-Chip

集成、混合和复杂系统科罗拉多大学博尔德分校刘友健黄新明，伍斯特理工学院王中峰，俄勒冈州立大学合作研究：片上通用协作通信系统智能优点：2001年9月11日恐怖袭击和卡特里娜飓风等事件已使容灾和可互操作通信成为国家优先事项。尽管用户之间存在干扰，但容灾通信网络必须工作，因为当第一响应者聚集在灾难现场时会出现这种干扰。传统的干扰避免方法提供随着用户密度的增加而递减的每个用户的容量。协作通信可以利用干扰来解决这一问题，从而节省整个网络的发射功率。然而，现有协作通信算法的性能随着它们被设计用于的信道统计而显著不同，并且当信道比传输速率更好时浪费接收的互信息，或者当信道不能支持传输速率时遭受中断。该研究探索了一种由单个或多个天线节点组成的协作通信系统的设计，该系统在消除中断和不浪费接收互信息的意义上工作在不同的信道条件下。该项目的目标是将信息论解决方案一直到单芯片实现，以促进通信和编码，以及片上系统(SoC)的实现。该项目解决了三个领域的研究问题：(I)通信理论，(Ii)超大规模集成(VLSI)信号处理，以及(Iii)片上系统架构和设计。广泛影响：该项目促进了跨学科通信系统的研究和设计。片上系统的实现具有在未来固定或移动自组织无线网络中应用的潜力，具有在强干扰下工作的能力，符合急救人员的要求，有可能加强国家安全和应急准备。拟议的项目提供了一个教育机会，使学生接触到通信系统理论和实践的不同方面。它还将通过一个综合的研究和教育计划，让本科生和来自代表性不足群体的学生参与进来。

Integrative, Hybrid and Complex SystemsYoujian Liu, University of Colorado at BoulderXinming Huang, Worcester Polytechnic InstituteZhongfeng Wang, Oregon State UniversityCollaborative Research: A Universal Cooperative Communication System-on-ChipIntellectual Merit: Events such as the terrorist attacks of September 11, 2001 and Hurricane Katrina have made disaster-tolerant and interoperable communications a national priority. A disaster-tolerant communication network must work despite interference among users as arises when first responders converge at a disaster site. Conventional interference avoidance methods offer diminishing capacity per user as the user density increases. Cooperative communication can solve the problem by taking advantage of the interference, thus saving total network transmit power. However, the performance of existing cooperative communication algorithms vary significantly with the channel statistics for which they are designed and, also, waste received mutual information when the channel is better than the transmission rate or suffer an outage when the channel cannot support the transmission rate. This research explores the design of a cooperative communication system, composed of single or multiple antenna nodes, that works across varying channel conditions in the sense that outage is eliminated and received mutual information is not wasted. The goal of the project is to take an information theoretic solution all the way to a single-chip implementation to advance communication and coding, as well as system-on-chip (SoC) implementation. The project tackles research problems that are at the intersection of three areas: (i) communication theory, (ii) very large-scale integration (VLSI) signal processing, and (iii) system-on-chip architecture and design.Broader Impact: The project advances interdisciplinary communication system research and design. The system-on-chip realization has the potential for application in future fixed or mobile ad-hoc wireless networks with the capability to work under strong interference as required by first responders, potentially strengthening national security and emergency preparedness. The proposed project provides an educational opportunity to expose students to the diverse aspects of communication system theory and practice. It will also involve undergraduate students and students from underrepresented groups through an integrated research and education program.