Title
Two-dimensional collaborative filtering approach to wireless channel characterization in medical complex scenarios
Abstract
Planning the deployment of antennas in complex environments is a difficult task that requires the analysis of each specific scenario. In many cases, real measurements are taken so as to map signal strengths, interferences, and so on. However, taking real measurements is very time consuming and becomes impractical in complex, large scenarios. With the aim to avoid this burden, simulation techniques based on Ray Tracing, combining Geometric Optics and Uniform Theory of Diffraction, are used to predict waves' behaviour within a given environment. Those simulations depend on a number of parameters, namely angular resolution, number of rebounds, cells size, etc. By tuning these parameters, high-definition (HD) and low-definition (LD) results can be obtained. Although more practical than manual measurements, the computational cost of simulations in HD prevents their use in complex environments and their LD counterparts are applied. In this article we propose a technique based on collaborative filtering (CF) that allows the use of LD simulations (with low computational cost) by lessening their low quality problems. The proposed CF strategy exploits spacial constraints in 2D propagation planes to improve simulation results, which end up being very similar to those of HD, with a fraction of its computational cost.
Year
DOI
Venue
2016
10.1109/ISC2.2016.7580801
2016 IEEE International Smart Cities Conference (ISC2)
Keywords
Field
DocType
Wireless Channel Characterization,Collaborative Filtering,Ray Launching,Smart Health
Wireless,Collaborative filtering,Computer science,Ray tracing (graphics),Simulation,Algorithm,Uniform theory of diffraction,Communication channel,Angular resolution,Exploit,Geometrical optics
Conference
ISBN
Citations 
PageRank 
978-1-5090-1847-5
0
0.34
References 
Authors
16
7
Name
Order
Citations
PageRank
Fran Casino19413.51
Peio Lopez-Iturri261.00
Erik Aguirre3569.90
Leyre Azpilicueta4227.58
Francisco Falcone5329.67
Edgar Batista600.68
Agusti Solanas768750.73