NeTS-WN: Quantification of Spectrum Availability for Wireless Network Access

为了解决300 MHz ~ 3 GHz频段频谱资源稀缺的问题，提出了一种动态频谱接入方案来提高频谱利用率。通过实现对未占用的许可频谱的临时、未许可的无线接入（称为“频谱空洞”），相同频谱可以支持更大数量的无线传输，同时尊重现任许可证持有者的权利。然而，这种模式在很大程度上取决于这些频谱空洞的位置和大小，这些频谱空洞可能会随时间、频率和地理位置而随机变化。该项目的目标是：（i）通过理论和实验技术准确地表征美国中等城市中主要频谱的可用性，即平均和最常见的情况，用于二级接入，（ii）定量地确定频谱占用和频谱空洞可用性的长期行为和趋势，以及（iii）理解和洞察电空间特性可用主要频谱的定量评估和表征对于提供对新的和不断增长的无线服务的接入是重要的。了解如何利用这一重要资源将大大有助于频谱监管机构和用户规划未来的部署和无线行业的整体增长。由于现代社会依赖于通信网络才能正常运行，因此对频谱可用性进行研究非常重要。了解实际可用频谱的数量以及这些机会在频率中的位置对于无线行业至关重要，无线行业在过去几年中经历了快速增长并继续加速。

To resolve the apparent scarcity of available prime radio spectrum (300 MHz - 3 GHz), the dynamic spectrum access paradigm was proposed to improve spectrum utilization. By enabling temporary, unlicensed wireless access to the unoccupied licensed spectrum, called "spectrum holes", a larger number of wireless transmissions can be supported by the same spectrum while simultaneously respecting the rights of the incumbent license holders. However, this paradigm heavily depends on the location and size of these spectrum holes, which can vary randomly with respect to time, frequency, and geography. The objective of this project is: (i) to accurately characterize the availability of prime spectrum in mid-size US cities, i.e. the average and most common case, for secondary access via theoretical and experimental techniques, (ii) to quantitatively determine the long-term behavior and trends of spectrum occupancy and spectrum hole availability, and (iii) to understand and obtain insight into the electrospace characteristics (time, frequency, spatial) over a large urban area.The quantitative assessment and characterization of available prime spectrum is important for providing access to new and growing wireless services. Understanding how this essential resource is utilized will greatly assist spectrum regulators and users to plan future deployments and the overall growth of the wireless industry. Since modern society depends on communication networks in order to function properly, conducting research into spectrum availability is important. Knowledge of how much spectrum is actually available and where those opportunities are located in frequency is of vital importance to the wireless industry, which has experienced rapid growth over the past several years and continues to accelerate.