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.
A simple method for joint blind equalization and detection of QAM and PAM transmissions is presented. By studying the geometrical relations between the rectangular QAM signal constellation and PAM signal constellation, a novel cost function including blind equalization and detection of them is defined. Such cost function-based the improved constant modulus algorithm (CMA) transforms the coordinates...
In digital communication system the Constant Modulus Algorithm (CMA) based FIR equalizer is by far the most popular blind equalization to combat the Inter-Symbol Interference (ISI). The major problem of CMA, however, is that it only achieves moderate convergence rate and steady state mean square error (MSE). Furthermore, the CMA and such blind equalization techniques must rely on the observations...
A new concurrent scheme for blind equalization suitable for 16-QAM signal is proposed. It combines modified modulus algorithm (MCMA) and modified decision directed (MDD) algorithm. By exploiting the inherent structural relationship between the 4-QAM signal's coordinates and 16-QAM signals' coordinates, another style of cost function for constant modulus algorithm (CMA) is defined, and we have proved...
A new Decision-Feedback Equalizer (DFE) is proposed to overcome Inter-Symbol Interference (ISI) faster in the communication system without the aid of training sequences. Unlike the conventional DFE, the feedforward filter component and the feedback filter component in the proposed DFE operate with Constant Modulus Algorithm (CMA) and Decision-Directed (DD) algorithm respectively. It makes full use...
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.