Turbo MRC-SMDS:基于混合信息的低复杂度协同定位

G. Abreu, Alireza Ghods
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引用次数: 1

摘要

本文对超多维尺度(SMDS)无线定位框架进行了复域重构,得到了一种从混合(角度和距离)信息中提取准确位置信息的全新方法。具体而言,在这种重新表述下,SMDS边缘核是复值的,其块结构暴露了锚点到锚点、锚点到目标和目标到目标之间的信息依赖关系。利用这些特征,设计了几种新的SMDS算法,这些算法不仅消除了特征分解的需要,有利于类似于最大比率组合的更简单的向量乘法运算,而且适合于无线定位系统面临的典型和实际条件下出现的特定数据擦除结构。结果表明,这些新算法提供了不同的复杂性/性能改进,最终实现了比原始SMDS方法更快和更准确的新迭代设计。
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Turbo MRC-SMDS: Low-complexity Cooperative Localization from Hybrid Information
We introduce a complex-domain1 reformulation of the super multidimensional scaling (SMDS) wireless localization framework, obtaining from it an entirely new method to extract accurate location information from hybrid (angles and distances) information. Specifically, under this reformulation, the SMDS edge kernel is complex-valued and its block structure exposes clear relationships between anchor-to-anchor, anchor-to-target and target-to-target information dependencies. Exploiting these features, several new SMDS algorithms are designed which not only eliminate the need for eigen-decompositions in favor of much simpler vector multiplication operations similar to maximum ratio combining, but also are suited to particular data erasure structures emerging from typical and practical conditions faced by wireless localization systems. It is shown that these new algorithms offer different complexity/performance improvements, culminating with a new iterative design which is both faster and more accurate than the original SMDS method.
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