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A Comprehensive Survey of Machine Learning Based Localization with Wireless Signals
Daoud Burghal, Ashwin T. Ravi, Varun Rao +2
The last few decades have witnessed a growing interest in location-based services. Using localization systems based on Radio Frequency (RF) signals has proven its efficacy for both…
Co-Located vs Distributed vs Semi-Distributed MIMO: Measurement-Based Evaluation
Thomas Choi, Peng Luo, Akshay Ramesh +1
With the growing interest in cell-free massive multiple-input multiple-output (MIMO) systems, the benefits of single-antenna access points (APs) versus multi-antenna APs must be an…
6G Wireless Systems: Vision, Requirements, Challenges, Insights, and Opportunities
Harsh Tataria, Mansoor Shafi, Andreas F. Molisch +3
Mobile communications have been undergoing a generational change every ten years or so. However, the time difference between the so-called "G's" is also decreasing. While fifth-gen…
Favorable Propagation with User Cluster Sharing
Chelsea Miller, Peter J. Smith, Pawel A. Dmochowski +2
We examine the favorable propagation (FP) behavior of a massive multi-user multiple-input-multiple-output (MU-MIMO) system equipped with a uniform linear array (ULA), horizontal un…
Hybrid Beamforming Structure for Massive MIMO System: Full-connection v.s. Partial-connection
Zheda Li, Shengqian Han, Andreas F. Molisch
In this article we compare the performance of two typical hyrbid beamforming structures for multiuser massive MIMO systems, i.e., the full- and partial-connection structures. Under…
Standardization of Propagation Models: 800 MHz to 100 GHz -- A Historical Perspective
Harsh Tataria, Katsuyuki Haneda, Andreas F. Molisch +2
Propagation models constitute a fundamental building block of wireless communications research. Before we build and operate real systems, we must understand the science of radio pr…