arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2006.08925cs.NIeess.SP
收藏

提高深度学习在无线定位中的性能

Improving the Performance of Deep Learning for Wireless Localization

Ramdoot Pydipaty, Johnu George, Krishna Selvaraju, Amit Saha

摘要:

室内定位系统通常基于WiFi或蓝牙低功耗(BLE)信标的接收信号强度指示符(RSSI)测量。在这种系统中,两种最常见的技术是三边测量和指纹识别,后者提供更高的精度。在指纹技术中,深度学习(DL)算法通常用于基于在接收器处接收的多个信标的RSSI测量来预测接收器的位置。在本文中,我们解决了将深度学习应用于无线定位的两个实际问题-将解决方案从一个无线环境转移到另一个\emph{and}小尺寸的标记数据集。首先,我们将自动超参数优化应用于用于室内无线定位的深度神经网络(DNN)系统,这使得系统易于移植到新的无线环境。其次,我们展示了如何使用未标记的数据集来增强一个典型的小标记数据集。通过应用这两种技术,我们观察到DL的性能有所提高。此外,所有相关代码都是免费提供的。

英文摘要:

Indoor localization systems are most commonly based on Received Signal Strength Indicator (RSSI) measurements of either WiFi or Bluetooth-Low-Energy (BLE) beacons. In such systems, the two most common techniques are trilateration and fingerprinting, with the latter providing higher accuracy. In the fingerprinting technique, Deep Learning (DL) algorithms are often used to predict the location of the receiver based on the RSSI measurements of multiple beacons received at the receiver. In this paper, we address two practical issues with applying Deep Learning to wireless localization -- transfer of solution from one wireless environment to another \emph{and} small size of labelled data set. First, we apply automatic hyperparameter optimization to a deep neural network (DNN) system for indoor wireless localization, which makes the system easy to port to new wireless environments. Second, we show how to augment a typically small labelled data set using the unlabelled data set. We observed improved performance in DL by applying the two techniques. Additionally, all relevant code has been made freely available.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑