Geometrical Cluster-Based Scatterer Detection Method with the Movement of Mobile Terminal
Author
Summary, in English
When a mobile station moves along a trajectory, it will see different parts of the same scatterers or scatterer groups during its movement. In this paper, we present a new method to identify such physical clusters of scatterers, and the corresponding groups of multipath components (MPCs) interacting with those clusters, from measurements of channel impulse responses. The method is based on identifying MPCs that have similar long-term properties - in the sense that they ``effectively interact with'' the same physical clusters, The method consists of four steps: (1) estimate the delays, the DOAs and the amplitudes of the MPCs in each time snapshot; (2) track the MPCs in the time-delay domain; (3) localize all the scattering points in a 2-D Cartesian coordinate system and cluster them on a map with a traditional Kmeans clustering algorithm; (4) merge the scattering points of different MPCs into physical clusters. The method is evaluated using both synthetic data and real measurement data from a suburban area. In the latter case, the locations and the sizes of the interacting objects identified from the measurements show excellent agreement with the location of physical objects in the environment such as pillars and buildings.
Department/s
Publishing year
2015
Language
English
Publication/Series
IEEE 81st Vehicular Technology Conference (VTC Spring), 2015
Document type
Conference paper
Publisher
IEEE - Institute of Electrical and Electronics Engineers Inc.
Topic
- Communication Systems
Keywords
- MPC tracking
- clustering
- localization
- physical clusters
Conference name
IEEE Vehicular Technology Conference (VTC Spring), 2015
Conference date
2015-05-11 - 2015-05-14
Conference place
Glasgow, United Kingdom
Status
Published