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.
This paper investigates the antenna selection and relay node selection issues for multi-antenna relay system. Based on the channel statistics, optimal selection criteria for antenna and relay node are derived respectively, aiming to maximize the ergodic capacity. We first discuss the statistical antenna selection in the single-relay scenario, and then the joint antenna and node selection in the multi-relay...
The fault detection and analysis for power transformer are the key measures to improve the security of power systems and the reliability of power supply. Due to the complicity of the power transformer structure and the variations in operating conditions, the occurrence of a fault inside power transformer is uncertain and random. Until now, the fault statistics of power transformer is very limited...
Being one of the most important equipments for power transmission, the fault diagnosis and analysis of power transformer is the key to the security and reliability of power supplies. It leads to uncertainties and randomicity for the fault happening that the complicated structures of power transformers and its operating environment, and it is hard to accumulate the statistical information of fault...
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.