Direct-sequence ultra-wideband over fiber technologies for wireless multiple access communications and sensor networks

这项为期五年的研究计划涉及无线多址通信和传感器网络的超宽带光纤（UWB-over-fiber）技术的研究和发展。拟议的理论和实验研究将使我们能够领导加拿大和国际努力，为宽带无线接入和传感器网络寻找创新的超宽带光纤技术。2002年，美国联邦通信委员会（US Federal Communications Commission）批准在3.1至10.6 GHz范围内使用超宽带，这引起了人们对短距离高吞吐量无线通信和传感器网络的极大兴趣。这种短距离无线网络主要以独立模式在室内环境中运行，几乎不需要与固定有线网络或无线广域基础设施集成。为了提供跨不同网络的不间断服务，并最终实现随时随地的高数据速率访问，一种解决方案是将超宽带与最先进的光纤分布技术相结合，这是一个称为光纤超宽带的新领域。在这个拟议的研究计划中，我们将研究和开发基于光产生的UWB信号的光纤超宽带技术，这些信号是基于直接序列码分多址编码的，以及用于多用户宽带无线通信和传感器网络的相关光电元件。

This five-year research program is concerned with the investigation and development of UltraWideband-over-fiber (UWB-over-fiber) technologies for wireless multiple access communications and sensor networks. The proposed theoretical and experimental research will allow us to lead Canadian and international efforts in searching for innovative UWB-over-fiber technologies for broadband wireless access and sensor networks. UWB, approved by the US Federal Communications Commission in 2002 for unlicensed use from 3.1 to 10.6 GHz, has attracted great interest for short-range high-throughput wireless communications and sensor networks. Such short-range wireless networks can operate mainly in an indoor environment in a stand-alone mode, with nearly nonexistent integration into the fixed wired networks or wireless wide-area infrastructure. To offer availability of undisrupted service across different networks and eventually achieve high-data rate access at any time and from any place, a solution is to combine the UWB with state-of-the-art fiber distribution technology, a new area called UWB over Fiber. In this proposed research program, we will investigate and develop UWB-over-fiber technologies based on optically generated UWB signals that are encoded based on direct sequence code division multiple access and the associated optoelectronic components for multiple user broadband wireless communications and sensor networks.