Vehicle tracking plays more important roles in modern transportation and logistics operation. This paper deals with a new approach to track vehicles based on RFID (Radio Frequency Identification) technology. The vehicle tracking system is designed overallly supported by Axiomatic Design theory. The basic steps of vehicle tracking based on RFID are developed and a six-layered architecture for th...

The wireless position tracking problem is of increasing relevance to the society today, owing to applications such as navigation, security, and asset tracking. Despite numerous technological advances, radio based position location systems such as global positioning systems (GPS), ultrawide band (UWB) systems, and radio frequency identification (RFID) systems suffer reduced performance in non-li...

The use of location tracking technology can be applied to industry to improve many areas such as security, safety and the supply chain. The main reason that location tracking systems have not be applied across many applications is due to the number of limitations that restrict the technology. Radio Frequency Identification (RFID) is mainly used in close proximity identification such as entering...

This paper describes user location and tracking on indoor scenarios through an ambient network. User location and tracking are considered in order to provide complete intelligent location based services. Imprecise location based on radio-frequency estimations can be processed by a fuzzy location algorithm in order to provide high location near to 90%. Fuzzy tracking is also provided by means of...

This paper presents a comparison between Radio Tomographic Imaging (RTI) and Device-free Passive (DfP) tracking in standard WiFi networks. We show that for typical WiFi deployments, tracking methods are able to extract location information from a limited number of streams while imaging methods fail to produce meaningful images. On the other hand, we show that when the number of streams increase...

Brood-parasitic cowbirds are hypothesized to search for and locate host nests within a relatively constant area, as this is presumed to facilitate the monitoring of nests over time and the synchronization of parasitism with host laying. We tested this hypothesis in Shiny Cowbirds (Molothrus bonariensis) and Screaming Cowbirds (M. rufoaxillaris), two cowbird species that differ in host specifici...