NeTS-NEDG: Adaptive Wideband Networks for the Multimedia Home

用户希望在家中共享高清晰度音频和视频，这推动了对不断增长的无线带宽的需求。宽带无线电，其带宽跨越数百MHz到许多GHz，可以提供解决方案。近年来，在设计和实现用于单个链路的宽带无线电收发器方面已经显示出显著的工作。然而，这还不够;为了使宽带技术变得实用，我们需要宽带链路与窄带技术共存，窄带技术与宽带链路共享频谱（例如，802.11 a/B/g和WiMax），以及在其他宽带链路的存在下有效地工作，从而产生成功的宽带网络。FAWN允许宽带收发器与工作在相同频率的窄带设备共存，同时形成自己的网络。FAWN还利用频率分集，引入新的自动化算法和频率感知的MAC协议。我们将在宽带无线电硬件中实现FAWN，并在宽带节点和窄带设备的测试床中评估我们的设计，这项研究的智力价值包括设计和构建第一个宽带网络的系统架构，该架构可与未知的窄带设备安全共存。这项工作也有一个重要的更广泛的影响，因为它使丰富的媒体无线家庭，这是非常感兴趣的无线产业，并密切结合教育计划，涉及研究生和本科生，特别强调妇女和代表性不足的群体。

Users' desires to share high definition audio and video around the home are driving the need for ever-increasing wireless bandwidth. Wideband radios, whose bandwidth spans hundreds of MHz to many GHz, can provide the solution. Recent years have shown significant work on the design and implementation of wideband radio transceivers that function for a single link. However, this is not enough; for wideband technologies to become practical, we need a wideband link to coexist with narrowband technologies with which it shares the spectrum (e.g., 802.11 a/b/g and WiMax), as well as operate efficiently in the presence of other wideband links producing successful wideband networks.This project presents FAWN, a Frequency Adaptive Wideband Network designed for wideband radios operating in the unlicensed spectrum. FAWN allows wideband transceivers to coexist with narrowband devices operating in the same frequencies, while forming a network of their own. FAWN also exploits frequency diversity, introducing novel autorate algorithms and MAC protocols that are frequency-aware. We will implement FAWN in wideband radio hardware and evaluate our design in a testbed of wideband nodes and narrowband interferers.The intellectual merit of this research involves designing and building the first system architecture for wideband networks that coexist safely with unknown narrowband devices. The work also has an important broader impact because it enables the rich-media wireless home which is of great interest to the wireless industry, and is closely integrated with an educational plan that involves both graduate and undergraduate students, with special emphasize on women and underrepresented groups.