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

NeTS-WN：无线网络接入频谱可用性的量化

• 批准号: 0754315
• 负责人: Alexander Wyglinski
• 金额: --
• 依托单位: Worcester Polytechnic Institute
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2007
• 资助国家: 美国
• 起止时间: 2007-08-29 至 2010-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0754315&HistoricalAwards=false
• 关键词: NeTS; WN; Quantification; Spectrum; Availability

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.

为解决可用主频谱（300 MHz ~ 3 GHz）明显不足的问题，提出了动态频谱接入模式，以提高频谱利用率。通过允许对未使用的特许频谱（称为“频谱洞”）进行临时的无牌无线接达，同一频谱可以支持更多数量的无线传输，同时尊重现有牌照持有人的权利。然而，这种模式在很大程度上取决于这些频谱孔的位置和大小，它们可以随时间、频率和地理位置随机变化。该项目的目标是：(i)通过理论和实验技术准确表征美国中型城市主要频谱的可用性，即平均和最常见的二次接入情况；（ii）定量确定频谱占用和频谱空穴可用性的长期行为和趋势；（iii）了解并深入了解大型城市地区的电空间特征（时间、频率、空间）。可用主频谱的定量评估和表征对于提供新的和不断增长的无线业务的接入非常重要。了解如何利用这一重要资源将极大地帮助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。了解实际可用的频谱数量以及这些机会在频率中的位置对无线行业至关重要，无线行业在过去几年中经历了快速增长，并将继续加速增长。