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.
Partial transmit sequence (PTS) is a proven technique for peak-to-average-power ratio (PAPR) reduction in orthogonal frequency division multiplexing (OFDM) systems. Determining the optimal phase factors requires an exhaustive search over all possible sets of phase factors. Hence, simplified optimal and suboptimal approaches have been proposed. Previous methods of formulating the phase factor optimization...
Orthogonal frequency division multiplexing (OFDM) modulation is widely used in communication systems to meet the demand for ever increasing data rates. In this paper, a low complexity joint semiblind detection algorithm for OFDM systems over time-varying channels is proposed based on the channel correlation and noise variance. The problem is relaxed to a continuous non-convex quadratic programming...
An orthogonal frequency division multiplexing (OFDM) system has the problem of the peak-to-average power ratio (PAPR) due to the inter symbol interference between the many sub-carriers. In general, in order to obtain optimal PAPR reduction using the partial transmitted sequence (PTS), the total search for the number of sub-blocks and the rotation factors must be accomplished. As the number of sub-blocks...
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.