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

集成、混合和复杂系统刘友建，科罗拉多大学博尔德分校黄新明，伍斯特理工学院王忠峰，俄勒冈州州立大学合作研究：一个通用的合作通信片上系统知识分子的优点：2001年9月11日的恐怖袭击和卡特里娜飓风等事件使灾难容忍和互操作通信成为国家的优先事项。 当第一响应者聚集在灾难现场时，尽管用户之间出现干扰，但灾难容忍通信网络必须工作。 传统的干扰避免方法随着用户密度的增加而减少每个用户的容量。 协作通信可以利用干扰来解决这个问题，从而节省网络总的发射功率。 然而，现有的合作通信算法的性能变化显着的信道统计，他们的设计，也浪费接收到的互信息时，信道是优于传输速率或遭受中断时，信道不能支持的传输速率。 本研究探讨了一个合作通信系统的设计，由单个或多个天线节点，在不同的信道条件下的中断被消除，收到的互信息是不浪费的意义上的工作。 该项目的目标是将信息理论解决方案一直应用到单芯片实现，以推进通信和编码以及片上系统（SoC）实现。 该项目主要研究通信理论、超大规模集成电路（VLSI）信号处理、片上系统架构和设计等三个领域的交叉问题。影响范围：该项目推进跨学科的通信系统研究和设计。 片上系统的实现有可能应用于未来的固定或移动的自组织无线网络，具有在第一响应者所需的强干扰下工作的能力，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，让学生接触到通信系统理论和实践的各个方面。 它还将通过一个综合的研究和教育计划，让本科生和代表性不足的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.