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 reports investigations into mutual coupling effects on performance of a beamforming transmission scheme of a multiple-input multiple-output (MIMO) system operating under Rician channel conditions. It is shown that the presence of mutual coupling in a transmitting array antenna degrades the radiation pattern. However, it does not adversely affect the system capacity. If the correlated Rayleigh...
The paper reports a fast transmit antenna selection scheme employing block diagonalization for a multiuser MIMO system, in which a base station features more antennas than RF branches. The task of selecting an optimal sub-set of antennas is achieved in an iterative manner that requires a considerably less time than the earlier reported schemes employing a full search. The newly proposed transmission...
In this paper, we investigate a switching scheme involving antenna selection and transmit beamforming modes for a multiple input multiple output (MIMO) system operating over a varying Rician channel. It is shown that that beamforming outperforms antenna selection when line of sight (LOS) component dominates the channel. Also transmit beamforming is superior over antenna selection at high values of...
This paper reports on the performance of the space time block coded MIMO system with spatial redundancy which is accomplished using a larger than required numbers of antennas. The proposed scheme guides the transmitted power onto the RF branches with higher gain coefficients. The carried out theoretical analysis shows that the scheme can achieve higher channel capacity and lower symbol error rate...
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.