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.
The paper analyzes the possibility of providing reliable communications to the users of a high speed train (HST) using base stations (BTS) located in towers close to the track or in the station platforms. Measurements have been made on a real environment using test transmitters at 900, 2400 and 5700 Mhz, and making measurements inside a HST with external and internal antennas and a portable receiver...
A new scheme to generate multiple weights used in opportunistic beamforming (OBF) is proposed to deal with the performance degradation due to the fewer users in the OBF systems. In the proposed scheme, only two mini-slots are employed to create effective channels, while more channel candidates can be obtained via linearly combining the two effective channels, thus increasing the multiuser diversity...
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.