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arXiv 2209.01562eess.SP
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NLOS环境下多跳路径5G迭代定位同步算法

An Iterative 5G Positioning and Synchronization Algorithm in NLOS Environments with Multi-Bounce Paths

Zhixing Li, Fan Jiang, Henk Wymeersch, Fuxi Wen

摘要:

5G定位是一个非常有前途的领域,带来了许多机遇和挑战。许多现有技术依赖于多个锚节点和视线(LOS)路径,或者单个参考节点和单次反弹非LOS(NLOS)路径。然而,在密集的多径环境中,识别LOS或单次反弹假设是具有挑战性的。多跳路径会使定位精度显著下降。我们提出了一种在NLOS多径环境下的鲁棒5G定位算法。相应的定位问题被公式化为一个迭代和加权最小二乘问题,并利用不同的权重来减轻多跳路径的影响。数值模拟进行评估所提出的算法的性能。与仅使用单跳路径的基准定位算法相比,所提出的算法实现了类似的定位精度。

英文摘要:

5G positioning is a very promising area that presents many opportunities and challenges. Many existing techniques rely on multiple anchor nodes and line-of-sight (LOS) paths, or single reference node and single-bounce non-LOS (NLOS) paths. However, in dense multipath environments, identifying the LOS or single-bounce assumptions is challenging. The multi-bounce paths will make the positioning accuracy deteriorate significantly. We propose a robust 5G positioning algorithm in NLOS multipath environments. The corresponding positioning problem is formulated as an iterative and weighted least squares problem, and different weights are utilized to mitigate the effects of multi-bounce paths. Numerical simulations are carried out to evaluate the performance of the proposed algorithm. Compared with the benchmark positioning algorithms only using the single-bounce paths, similar positioning accuracy is achieved for the proposed algorithm.

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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