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 is concerned with distributed user selection strategy for massive multiuser multiple-input multiple-output(MU-MIMO) systems, where zero-forcing beamforming (ZFBF) and regularized zero-forcing beamforming (RZFBF) are considered. Firstly, this paper formulate the selection as a discrete game in which the users are regarded as game participants. This game is shown to possess at least one pure...
In deep space exploration, the communication signal between the deep space detector and command-control center will experience a very large attenuation; the domain of this attenuation can be divided into two parts. One is caused by the spread of spherical wave; the other is due to the scattering and absorption of atmosphere and ionosphere, which value can reach to 40∼50dB. If the distributed satellites...
An effective VSSCS-LMS (variable step size constrained stability - least mean square) algorithm for adaptive beamforming is presented in this paper. Compared with CS-LMS algorithm, the proposed algorithm has a weight vector update equation with variable step size to balance the convergence rate and steady-state misadjustment effectively. Two adjustment factors in the formula of variable step size...
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.