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 proposes a novel scheme of joint transmit antenna and subcarrier selection in MIMO-OFDM systems. The selection criterion is based on both the minimum condition number and maximum Frobenius norm of channel submatrix under the assumption that the transmitter has full knowledge of the channel state information (CSI). To further reduce the computational complexity, we also present a simplified...
In the uplink of an orthogonal frequency division multiple access (OFDMA) system, because of multiple access interference (MAI), carrier frequency offset (CFO) estimation is much more difficult than that in single-user systems. This paper proposes a null subcarrier-based iterative CFO estimation method for the uplink of OFDMA system adopting sub-band based carrier assignment scheme. Rather than applying...
We address the problem of superimposed trainings- (STs-) based linearly time-varying (LTV) channel estimation and symbol detection for orthogonal frequency-division multiplexing access (OFDMA) systems at the uplink receiver. The LTV channel coefficients are modeled by truncated discrete Fourier bases (DFBs). By judiciously designing the superimposed pilot symbols, we estimate the LTV channel transfer...
Combining the hidden representation (HR) with the single-input-multiple-output (SIMO) system deconvolution (SIMOD), this paper proposes a new blind separation algorithm for regular sources in the non-minimum phase convolutive mixture. The new algorithm is twofold. First, the signals of each source contributing to all measurements are introduced as hidden variables such that the multiple-input-multiple-output...
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.