NeTS-ProWIN: Wireless Interference: Characterization and Impact on Network Performance

NeTS-ProWIN：无线干扰：特征及其对网络性能的影响

• 批准号: 0520232
• 负责人: Dennis Roberson
• 金额: --
• 依托单位: Illinois Institute of Technology
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2005
• 资助国家: 美国
• 起止时间: 2005-09-01 至 2010-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0520232&HistoricalAwards=false
• 关键词: NeTS; ProWIN; Wireless; Interference; Characterization

The proliferation of wireless applications creates an increased density of wireless devices. Information-bearing signals from these devices generate significant aggregate interference that adversely affects Wireless Local Area Network (WLAN) performance. Non-data bearing radiated signals also contaminate the space of WLANs in unlicensed bands. To date, this interference problem has largely been treated in an incremental, application specific manner. Thus, there is strong motivation to thoroughly understand this interference phenomenon to improve WLAN design, and ultimately adapt WLANs to dynamically mitigate interference degradation.This effort focuses on: the development of quantifiable interference characteristics of wireless receivers and, intentional and unintentional transmitters; the establishment of a means of understanding and characterizing interference temperature; and the use of this critical information to enhance interference and general error-modeling capabilities of network simulation tools. These objectives are achieved via a three-prong methodology: (1) theoretical modeling of interfering signals in temporal and spectral domains; (2) simulation modeling for studying the impact of interference on network performance including specific protocols, applications, and validation of interference models; (3) physical experimentation to verify and enhance theoretical and simulation results, augmenting empirical observations.The broad impact of this research allows the technical community to better understand wireless network resource management, leading to significant economic savings and performance improvements. Another important impact is on U.S. government communications policy. Education and training of students in this field is enhanced. Public demonstrations, symposia, and print/broadcast media are employed to disseminate results.

无线应用程序的扩散产生了无线设备的密度增加。 来自这些设备的信息信号产生了重要的骨料干扰，从而对无线局域网（WLAN）性能产生不利影响。 非DATA轴承辐射信号还污染了无牌带中WLAN的空间。 迄今为止，此干扰问题已在很大程度上以渐进的，特定的方式进行了处理。 因此，有强大的动力是彻底理解这种干扰现象以改善WLAN设计，并最终适应WLAN，以动态减轻干扰递减。这项工作重点是：开发无线接收器的可量化干扰特征，有意和无意义的发射器；建立一种理解和表征干扰温度的方法；以及使用此关键信息来增强网络仿真工具的干扰和一般错误模型功能。 这些目标是通过三孔方法来实现的：（1）在时间和光谱域中干扰信号的理论建模； （2）用于研究干扰对网络性能的影响（包括特定协议，应用程序和干扰模型验证）的仿真建模； （3）物理实验以验证和增强理论和模拟结果，增强经验观察结果。这项研究的广泛影响使技术界能够更好地了解无线网络资源管理，从而导致大量的经济节省和绩效改善。 另一个重要的影响是对美国政府通信政策。 该领域的学生的教育和培训得到了增强。 公开演示，专题讨论会和印刷/广播媒体用于传播结果。