Ημερολόγιο Εκδηλώσεων

Περιγραφή:
ΠΟΛΥΤΕΧΝΕΙΟ ΚΡΗΤΗΣ Σχολή Ηλεκτρολόγων Μηχανικών και Μηχανικών Υπολογιστών Πρόγραμμα Προπτυχιακών Σπουδών ΠΑΡΟΥΣΙΑΣΗ ΔΙΠΛΩΜΑΤΙΚΗΣ ΕΡΓΑΣΙΑΣ ΜΑΡΙΟΥ ΒΕΣΤΑΚΗ με θέμα Προσδιορισμός Θέσης σε Περιβαλλοντικά Δίκτυα Οπισθοσκέδασης Localization in Environmental Scatter Radio Networks Εξεταστική Επιτροπή Αναπληρωτής Καθηγητής Άγγελος Μπλέτσας (επιβλέπων) Αναπληρωτής Καθηγητής Γεώργιος Καρυστινός Αναπληρωτής Καθηγητής Αντώνιος Δεληγιαννάκης Abstract Scatter radio networks have been recently proposed for environmental sensing applications, e.g., water savings in agriculture. Additionally, they are central in inventory management with radio frequency identification (RFID) tags, as well as other Internet of Things (IoT) applications. Recent signal processing developments in bistatic scatter radio networks have dramatically extended their coverage; thus, knowing the location of each tag becomes valuable information. Each scatter radio tag reflects the illuminating signal, transmitted from multiple low-cost emitters. The received signal strength (RSS) measurements at a single low-cost reader are used as input in custom particle filtering (PF) algorithms, in order to localize each scatter radio tag. Free-space, two-ray and an empirical wireless propagation large-scale path loss models are considered, alongside a small-scale fading model and different particle resampling techniques. Extensive simulations for a 100m x 100m grid offered root mean squared error (RMSE) as low as 1.6m. Outdoor experimental results in a 32m x 27m grid offered 0.9m RMSE.