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 phenomenon of multipath propagation has contributed significantly towards deterioration of quality of signal received in a wireless communication system. Several techniques for multipath mitigation are in use in the current wireless communication technology standards. With the steady rise in the number of wireless devices active in the environment, the concept of beamforming has also gained popularity...
The multi-path fading channels always introduce inter-symbol interference (ISI) in the receiver and affect communication quality seriously. In order to suppress the ISI and decrease bit error rate, a wavelet neural network algorithm based on spatial diversity equalizer(SD-WNN) is proposed on basis of the spatial diversity technique and wavelet neural network. In the proposed SD-WNN algorithm, the...
This letter investigates the issues on joint application of STBC systems and RAKE receivers in a CDMA system. We show the advantages of using STBC-RAKE receivers in multipath Rayleigh fading channels via error probability analysis and extensive computer simulations. Specifically, this study leads to a better understanding of the interplay between spatial diversity by STBC and multipath diversity via...
Wireless links are impaired by random fluctuations in signal level across space, time and frequency known as fading. Spatial diversity is an attractive solution to improve system capacity as well as system performance by providing array gain or increased SNR. Satellites (GEO,MEO) and High Altitude platform stations(HAPS) also exploit spatial diversity in LOS/NLOS envirornment. Exact nature of the...
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.