CAREER: Study of Coexistence Restrictions of Cross-layer Designs in Wireless Networks

职业：无线网络中跨层设计的共存限制研究

• 批准号: 1054697
• 负责人: Yaling Yang
• 金额: $ 45万
• 依托单位: Virginia Polytechnic Institute and State University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2011
• 资助国家: 美国
• 起止时间: 2011-07-15 至 2018-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1054697&HistoricalAwards=false
• 关键词: CAREER; Study; Coexistence; Restrictions; Cross

There has been an explosive growth of cross-layer designs proposed for wireless networks. These designs break the layered structure to actively exploit the dependence between protocol layers in wireless networks. However, the large number of cross-layer designs creates serious coexistence issues. The violation of layered structure may not comply with restrictions that constrain the coexistence among many cross-layer designs and other network systems, causing significant issues, such as degraded performance, inconsistent distributed decision making, network partition, and instability. The objective of this project is to systematically and rigorously categorize and analyze coexistence restrictions of cross-layer designs in wireless networks. In this project, coexistence restrictions of various cross-layer designs are theoretically modeled and analyzed. Different kinds of coexistence restrictions are defined, the conditions for their occurrences and their impact on network operations are revealed, and methods to check coexistence issues are developed. The project also seeks restriction-compliant protocol design techniques. This project serves as a major effort in the understandings of cross-layer designs in wireless networks and is the pioneer in providing systematic analysis of coexistence restrictions of cross-layer designs. The result of this project can be used to evaluate cross-layer designs? limitations and potential problems. This will promote the acceptance of good cross-layer designs in real systems and prevent architecture failures in design integration. In addition, this project provides practical techniques for designing more compatible cross-layer systems. Ultimately, this will greatly enhance the flexibility and robustness of current and future wireless network systems.

针对无线网络提出的跨层设计出现了爆炸性增长。这些设计打破了分层结构，积极利用无线网络中协议层之间的依赖关系。然而，大量的跨层设计造成了严重的共存问题。违反分层结构可能不符合许多跨层设计和其他网络系统之间共存的限制，从而导致严重问题，例如性能下降、分布式决策不一致、网络分区和不稳定。该项目的目标是系统、严格地分类和分析无线网络中跨层设计的共存限制。 在该项目中，对各种跨层设计的共存限制进行了理论建模和分析。定义了不同类型的共存限制，揭示了它们发生的条件及其对网络运行的影响，并开发了检查共存问题的方法。该项目还寻求符合限制的协议设计技术。该项目是理解无线网络中跨层设计的一项重大努力，并且是提供跨层设计共存限制系统分析的先驱。这个项目的结果可以用来评估跨层设计吗？局限性和潜在问题。这将促进良好的跨层设计在实际系统中的接受度，并防止设计集成中的架构失败。此外，该项目还提供了设计更兼容的跨层系统的实用技术。最终，这将大大增强当前和未来无线网络系统的灵活性和鲁棒性。