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 adaptive Beamforming techniques used in concatenation with a ppSNR-based switching algorithm in multi-user MIMO OFDM systems. The performance's equivalence of SM adaptive beamforming and STBC adaptive one is shown analytically and by simulation, and a complexity study is carried out and allows selecting the beamforming adapted to SM. The effect of the MIMO architecture (with...
In this paper, we propose two methods to perform a switching between spatial multiplexing and MIMO diversity in order to improve performances of a 2×2 OFDM-MIMO system. Each method is defined depending on the granularity of the spatial processing. The comparison of BER performances of the two schemes leads to the choice of the sub-carrier based switching processing which gives the most significant...
This paper presents a study of switching algorithm performances when combined to several beamforming techniques in a multi-user MIMO communication system. The study of three beamforming solutions shows that the beamforming processing has an important influence in the decision criterion of the switching algorithm. The STBC adaptive beamforming, which is better than Zero forcing (ZF) and Singular Value...
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.