The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
In the study of the wireless mobile network, Random waypoint mobility model (RWP) and its generalization, nonuniform RWP (NU-RWP) are two of the most widely used mobility models. A useful property in NU-RWP, namely the inter-arrival time (IAT) is studied in this paper. We analytically derive the relationship between waypoint distribution and IAT, and propose two estimation schemes for the evaluation...
Non-line-of-sight propagation in wireless localization systems leads to a challenging problem for the estimation of a mobile position. A hybrid idea has been considered as a promising approach to increase estimation accuracy. Existing methods, however, are formulated using separate measurements, necessitating different observation quantities, e.g. received signal and received signal strength, thus...
In recent years, wireless location estimation has attracted a significant amount of attention in different areas. The network-based location estimation schemes have been widely adopted based on the radio signals between the mobile station (MS) and the base stations (BSs). The two-step Least Square (LS) method has been studied in related research to provide efficient location estimation of the MS....
This study presents a metropolitan-scale location system using FM radio. FM is a wider-covered and longer-lived infrastructure and originally designed to listen for broadcasting information. Although FM towers have existed for a long time and recent mobile devices have already contained a low-cost FM receiving function, using FM signal strength for positioning has not been well explored. Our system...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.