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 this paper, we describe the concept of wireless sensor networks, and introduce a latest communication technology - ZigBee technology - for wireless sensor networks. We present the requirements, constraints and guidelines for general wireless sensor network architecture design and implementation based on ZigBee technology.
A modification of Vertical Bell-Labs Layered Space Time (V-BLAST) is presented in this paper, which adopts distinct transmit data rate on different data stream on the basis of the theoretical derivation of the optimal bit error rate (BER) performance for open-loop V-BLAST. Simulation results show that this scheme may provide a significant reduction in BER averaged over all detection stages compared...
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.