Extending the reach of high bit rate UWB - from FTTH to household LAN

扩展高比特率 UWB 的覆盖范围 - 从 FTTH 到家庭 LAN

• 批准号: 365251-2008
• 负责人: Rusch, LeslieAnn
• 金额: $ 11.15万
• 依托单位: Université Laval
• 依托单位国家: 加拿大
• 项目类别: Strategic Projects - Group
• 财政年份: 2010
• 资助国家: 加拿大
• 起止时间: 2010-01-01 至 2011-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=460949
• 关键词: Extending; reach; bit; rate; UWB

The adoption of fibre to the home (FTTH) is shaped by many factors: cost of deployment, cost of equipment, cost of infrastructure, adoption of consumer products that drive bandwidth demand beyond competing technologies' (e.g., cable and DSL) capacity, and the client's ability to exploit FTTH services cost effectively to feed all bandwidth hungry consumer devices. In particular, the penetration of high definition television (HDTV) is pushing up bandwidth demand, as is increasingly video-based Internet content, with IPTV looming on the horizon. The willingness of consumer to subscribe to extremely high bandwidth services hinges on the capacity to feed the multiple televisions and computers distributed throughout a dwelling without pervasive, high speed LAN cabling. Current wireless standards such as 802.11 can cover an entire household, but do not have the requisite bandwidth for multiple, simultane-ous high-definition video and/or high bit rate Internet delivery. Ultra-wideband (UWB) has sufficient bandwidth (>500 Mb/s), but range that covers a room rather than a home. This project addresses the enhancement of UWB technology to achieve home-wide coverage at 500 Mb/s or greater. More importantly, we search for a systems solution that exploits the use of optical transport to gain technological and cost advantages, allowing service providers to bundle FTTH content delivery with in-home wireless distribution. Our aggressive goals for a breakthrough ten-fold extension of UWB range are particularly challenging given the regulatory environment. UWB signals are constrained to be extremely low power; in this way they can be accorded tremendously wide frequency coverage (3-10 GHz), and thus attain very high bit rates. Therefore systems must be designed for extreme power efficiency, while recognizing the importance of keeping cost low. We seek our power efficiency gains in pulse shaping to attain maximally-allowed transmission power, and in advanced RF and digital signal processing at the receiver. To keep cost low we will examine new optical sources and exploit the available PON infrastructure.

光纤到户 (FTTH) 的采用受到许多因素的影响：部署成本、设备成本、基础设施成本、推动带宽需求超出竞争技术（例如电缆和 DSL）能力的消费产品的采用，以及客户有效利用 FTTH 服务来满足所有需要带宽的消费设备的能力。特别是，高清电视 (HDTV) 的普及正在推高带宽需求，越来越多的基于视频的互联网内容也在增加，IPTV 即将出现。消费者订阅极高带宽服务的意愿取决于是否有能力为分布在整个住宅中的多台电视和计算机提供信号，而无需普遍使用高速 LAN 布线。当前的无线标准（例如 802.11）可以覆盖整个家庭，但不具备同时传输多个高清视频和/或高比特率互联网传输所需的带宽。超宽带 (UWB) 具有足够的带宽 (>500 Mb/s)，但范围只能覆盖一个房间而不是一个家庭。该项目致力于增强 UWB 技术，以实现 500 Mb/s 或更高的家庭范围覆盖。更重要的是，我们寻找一种系统解决方案，利用光传输来获得技术和成本优势，使服务提供商能够将 FTTH 内容传输与家庭无线分布捆绑在一起。考虑到监管环境，我们将 UWB 范围突破十倍的雄心勃勃的目标尤其具有挑战性。 UWB 信号被限制为极低功率；通过这种方式，它们可以获得非常宽的频率覆盖范围（3-10 GHz），从而获得非常高的比特率。因此，系统的设计必须实现极高的功效，同时认识到保持低成本的重要性。我们寻求脉冲整形方面的功率效率增益，以获得最大允许的传输功率，以及接收器的先进射频和数字信号处理。为了保持低成本，我们将研究新的光源并利用可用的 PON 基础设施。