NeTS: Medium: Collaborative Research: MIMO-Pipe Modeling, Scheduling and Delay Analysis in Multi-hop MIMO Networks

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。多跳网络和点对点设置之间的根本差异表明，在多跳网络中利用MIMO增益需要从高SNR机制到干扰受限机制的范式转变。该项目承担了广泛的研究议程，围绕发展基础理论，以实现无线网络的最佳吞吐量和延迟性能。第一个关键步骤是采取自下而上的方法进行MIMO链路的实体模型抽象，同时考虑干扰，并提取一组可行的速率/可靠性要求，对应于有意义的MIMO流配置。在MIMO-pipe调度的共同思路下，该项目侧重于解决以下挑战：1）开发多跳网络中“MIMO-pipes”的速率/可靠性模型; 2）吞吐量最大化和延迟最小化的MIMO-pipe调度;以及3）具有延迟约束的MIMO-pipe实时调度（用于时间关键业务）。 该项目有助于制定新的多跳MIMO网络的基础理论，这对许多无线应用有直接的影响。特别是，实时调度揭示了利用VANET中的MIMO增益来可靠地提供及时的信息，以挽救生命并提高生活质量。代表性不足的本科生以及研究生参加这个项目。

This award is funded under the American Recovery and Reinvestment Act of 2009 (Public Law 111- 5). The fundamental differences between multi-hop networks and point-to-point settings indicate that leveraging MIMO gains in multi-hop networks requires a paradigm shift from high SNR regimes to interference-limited regimes. This project undertakes a broad research agenda centered around developing fundamental theory towards achieving optimal throughput and delay performance in wireless networks. The first key step is to take a bottom-up approach for solid model abstraction of MIMO links while taking into account interference, and to extract a set of feasible rate/reliability requirements, corresponding to meaningful MIMO stream configurations. Under a common thread of MIMO-pipe scheduling, this project focuses on tackling the following challenges: 1) Developing rate/reliability models for ``MIMO-pipes'' in multi-hop networks; 2) MIMO-pipe scheduling for throughput maximization and delay minimization; and 3) Real-time scheduling of MIMO-pipes with delay constraints (for time-critical traffic). This project contributes to the formulation of new fundamental theories for multi-hop MIMO networks, which have direct impacts on many wireless applications. Particularly, real-time scheduling sheds much light on leveraging MIMO gains in VANET to deliver timely information reliably to save lives and improve quality of life. Underrepresented undergraduate students as well as graduate students participate in this project.