ITR: Wireless Transit Access Points: Enabling a Scalable, Deployable, High Performance Wireless Internet

PI的驱动愿景是提供高性能、可扩展和广泛部署的无线互联网，促进从全新和不可预见的应用到真正的无线“宽带”到住宅和公共空间的服务，速率为10兆/秒。不幸的是，当今的无线网络（诸如蜂窝和WiFi热点）由于在多个方面遇到的问题而无法实现该愿景：（1）有线回程网络的过高成本，（2）较差的性能缩放，以及（3）频谱许可费的过高成本。 我们将设计一种基于转接接入点（TAP）的架构，TAP是通过在未授权频段运行的高性能定向天线无线链路形成无线骨干网的设备。这种多跳无线网状网将无线TAP与有限的有线Internet入口点以及无线多跳移动的用户互连。 为了实现这一架构的目标，PI将结合理论、算法和协议设计、仿真、实现和测试床实验来解决以下基础研究问题：（1）开发可扩展的分布式机会调度和媒体访问协议，（2）开发协调的多跳资源管理算法，（3）结合协议开销的关键影响的系统容量的分析，以及（4）第一种邻域测试床的部署。

The PIs driving vision is to provide a high-performance, scalable and widely deployed wireless Internet that facilitates services ranging from radically new and unforeseen applications to true wireless "broadband" to residences and public spaces at rates of 10s of Mb/sec. Unfortunately, today's wireless networks such as cellular and WiFi hot-spots cannot achieve this vision due to problems encountered on multiple fronts: (1) excessive costs of the wired backhaul network, (2) poor performance scaling, and (3) excessive costs of spectral license fees. We will design an architecture that is based on Transit Access Points (TAPs), devices that form a wireless backbone mesh via high-performance directional-antenna wireless links operating in the unlicensed band.This multihop wireless mesh interconnects wireless TAPs with limited wired Internet entry points and with wireless multihopping mobile users. To achieve the objectives with this architecture, the PIs will use a combination of theory, algorithm and protocol design, simulation, and implementation and testbed experimentation to address the following fundamental research issues: (1) development of scalable distributed opportunistic scheduling and media access protocols, (2) development of coordinated multi-hop resource management algorithms, (3) analysis of system capacity that incorporates the critical effects of protocol overhead, and (4) deployment of a first-of-its-kind neighborhood testbed.