Proactive Radar Protection System in Shared Spectrum via Forecasting Secondary User Power Levels
Proactive Radar Protection System in Shared Spectrum via Forecasting Secondary User Power Levels
复制标题
DOI：
10.1109/access.2022.3166844
复制
发表时间：
2022
期刊：
影响因子：
3.9
通讯作者：
S. Sone;Janne J. Lehtomäki;Z. Khan;K. Umebayashi;Zunera Javed
中科院分区：
文献类型：
--
作者：
S. Sone;Janne J. Lehtomäki;Z. Khan;K. Umebayashi;Zunera Javed
雷达波段中的频谱共享以及用于增强雷达保护的干扰预测可以帮助设计主动资源分配解决方案，该解决方案一方面可以实现无线通信网络的高数据速率，并且有助于保护现有雷达系统。我们认为雷达频谱共享在5.6GHz的天气雷达作为一个主要的系统和占主导地位的辅助系统是一个企业网络，包括接入点（AP）在大学校园。我们的工作模型根据真实的收集的数据将AP的功率作为具有多项分布的时间序列进行传输。使用基于长短期记忆（LSTM）的神经网络来预测由于来自雷达处的AP的传输而引起的聚合干扰。蒙特卡罗丢弃被用来生成预测区间，该预测区间捕获来自AP的干扰中的不确定性。最后，利用预测干扰时间序列的平均值和上限值，提出了一种云辅助的有效共享和雷达防护算法。在所提出的系统中不需要跟踪旋转雷达。结果表明，提出的高效共享和雷达保护系统，确保更好的雷达保护和增加的吞吐量的无线通信用户。
Spectrum sharing in radar bands with interference forecasting for enhanced radar protection can help design proactive resource allocation solutions which can achieve high data rates for wireless communication networks on one hand and help protect the incumbent radar systems. We consider radar spectrum sharing in 5.6GHz where a weather radar operates as a primary system and the dominant secondary system is an enterprise network consisting of access points (APs) in a university campus. Our work models transmit the power of the APs as a time series with multinomial distribution based on real collected data. The aggregated interference due to the transmissions from the APs at the radar is forecasted using a long short-term memory (LSTM) based neural network. Monte Carlo dropout is utilized to generate prediction intervals that capture the uncertainties in the interference from the APs. Finally, by using both average and upper limits of predicted interference time series a cloud-assisted efficient sharing and radar protection algorithm is proposed. Tracking the rotating radar is not required in the proposed system. The results show that the proposed efficient sharing and radar protection system ensures better radar protection and increased throughput for wireless communication users.