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.
Cognitive Radio(CR) is a promising technology to fully utilize the constrained spectrum, and cooperative spectrum sharing in cognitive network is regarded as an important and challenging issue. This paper considers that primary user(PU) is willing to coexist with secondary users(SUs) once it is paid and its Signal to Interference-plus-Noise Ratio(SINR) is assured. Since the spectrum state is not deterministic,...
Dynamic spectrum access is an effective approach to improve the spectrum utilization. When primary user (PU) leases its spectrum to secondary users (SU), the spectrum efficiency can be enhanced, however, PU might be interfered by the co-existence of SU. This paper considers the situation that PU is willing to coexist with SU once it is paid and its Signal to Interference-plus-Noise Ratio (SINR) is...
This paper considers spectrum utilization in cognitive radio (CR) based on both simultaneously adaptive spectrum sensing and transmission at Tx and bit error rate (BER) variation checking at Rx. A novel detecting model is proposed to consider the full-duplex second-user (SU)'s simultaneous sensing and transmitting whether the primary user (PU) is active or not. The probability of detection is provided,...
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.