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 work presents a novel peak-to-average power ratio (PAPR) reduction scheme, namely extended selected mapping (eSLM), in space-frequency block coding (SFBC) MIMO-OFDM systems. By introducing phase rotations and amplitude extensions into so-called extension matrices, the candidate signals with lowest PAPR can be selected and the receiver is able to identify index of the selected candidate without...
A Gaussian integer is a complex number whose real and imaginary parts are both integers. Meanwhile, a sequence is defined as perfect if and only if the out-of-phase value of the periodic autocorrelation function is equal to zero. This paper presents two novel classes of perfect sequences constructed using two groups of base sequences. The nonzero elements of these base sequences belong to the set...
Quasi-cyclic (QC) low-density parity-check (LDPC) codes have advantages over other types of LDPC codes due to their cyclic shifting property. In this paper, a partially parallel QC-LDPC decoder with efficient memory design is proposed. To improve the memory utilization, the structures of efficient chunk and predictor are realized. The efficient chunk can store parts of check-to-variable messages....
As one of leading countries in the digital economy, Taiwan has a significantly higher number of Internet hosts per capita. With Taiwan's manufacturing sector as a case study, this paper aims to explore the determinants of e-commerce adoption by manufacturers. Drawing on the database of the recent industrial census, the empirical results show that highquality human capital will benefit firms in engaging...
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.