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arXiv 2104.10342eess.SP
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基于GCN的室内多址接入点定位系统

A Novel GCN based Indoor Localization System with Multiple Access Points

Yanzan Sun, Qinggang Xie, Guangjin Pan, Shunqing Zhang, Shugong Xu

摘要:

随着室内定位业务的快速发展,对室内定位的需求也在不断增长。为了满足这一需求,我们提出了一种基于图卷积网络(GCN)的室内定位算法。我们首先将存取点(AP)及其之间的关系建模为一个图形,并利用接收信号强度指示(RSSI)来组成指纹。然后将图和指纹输入GCN进行特征提取,并通过多层感知器(MLP)进行分类。最后,在二维场景和三维场景下进行了实验。在二维场景下,基于GCN的方法的平均距离误差为11 m,与基于DNN和基于CNN的方案相比分别提高了7 m和13 m。在3D场景下,预测建筑物和楼层的准确率分别达到99.73%和93.43%。此外,在正确预测楼层和建筑物的情况下,平均距离误差为13 m,优于基于DNN和基于CNN的方案,其平均距离误差分别为34 m和26 m。

英文摘要:

With the rapid development of indoor location-based services (LBSs), the demand for accurate localization keeps growing as well. To meet this demand, we propose an indoor localization algorithm based on graph convolutional network (GCN). We first model access points (APs) and the relationships between them as a graph, and utilize received signal strength indication (RSSI) to make up fingerprints. Then the graph and the fingerprint will be put into GCN for feature extraction, and get classification by multilayer perceptron (MLP).In the end, experiments are performed under a 2D scenario and 3D scenario with floor prediction. In the 2D scenario, the mean distance error of GCN-based method is 11m, which improves by 7m and 13m compare with DNN-based and CNN-based schemes respectively. In the 3D scenario, the accuracy of predicting buildings and floors are up to 99.73% and 93.43% respectively. Moreover, in the case of predicting floors and buildings correctly, the mean distance error is 13m, which outperforms DNN-based and CNN-based schemes, whose mean distance errors are 34m and 26m respectively.

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。

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