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.
DSTBC (differential space-time block coding) system does not require CSI (channel state information) in both transmitter and receiver sides, but its SNR (signal to noise ratio) versus BER (bit error rate) characteristic is degraded compared with original STBC scheme which utilizes CSI at the receiver. In this paper, attempting to recover this performance loss originated from the differential decoding,...
We propose an implementation of the tapped delay line adaptive array (TDLAA) at the base station for improving the BER performance of asynchronous multi-user in mobile communication over fast fading channels using multiple antennas. The data in each user at the mobile station, which applies two transmit antennas, are encoded by space time block code (STBC). The proposed scheme transmits the pilot...
In this paper, we present a modified spatio- temporal adaptive array for multiuser space-time block codes (Modified STBC-TDLAA) transmission in frequency selective fading channel with the presence of co-channel interferences (CCIs). This method based on the transversal filter adaptive array perform the joint interference suppression and equalization. The presented Modified STBC-TDLAA can maximize...
We briefly review 1.3-/spl mu/m InGaAlAs DFB RWG lasers that feature low-resistance notch-free gratings and are for greater than 10-Gb/s direct modulation at over 100/spl deg/C. The superior transmission properties and long-term reliability are also described.
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.