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

PIs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”到住宅和公共场所的服务，速率为10s Mb/秒。不幸的是，今天的无线网络，如蜂窝和WiFi热点，无法实现这一愿景，因为遇到了多方面的问题：(1)有线回程网络成本过高，(2)性能扩展性差，(3)频谱许可费用过高。我们将设计一种基于传输接入点（TAPs）的架构，这些设备通过在未经许可的频带中运行的高性能定向天线无线链路形成无线骨干网。这种多跳无线网络将无线tap与有限的有线互联网入口点和无线多跳移动用户连接起来。为了实现该架构的目标，pi将使用理论，算法和协议设计，模拟和实现以及测试平台实验的组合来解决以下基本研究问题：(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)分析包含协议开销关键影响的系统容量，以及(4)部署首个此类社区测试平台。

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.