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.
An important issue of the spectrum sensing functionality in Cognitive Radio (CR) networks is the ability of tuning the parameters according to the time, i.g., the capacity of the Cognitive Radio Users in the network and the transmission time, which become more challenging in presence of Primary User (PU) mobility. In this paper, an optimal spectrum sensing is depicted to achieve the feature: I)to...
Deployment of Long Term Evolution (LTE) on unlicensed bands has been discussed recently in the 3rd Generation Partnership Project (3GPP) Release 13, which is also called LTE Licensed-Assisted Access (LAA) to unlicensed bands. Due to the unlicensed feature, other systems such as Wi-Fi and radar would operate on these bands. In order to avoid the interference, some management mechanism needs to be considered...
In this paper, we study the power allocation for both regenerative and non-regenerative relay transmission over Rayleigh fading channels in cognitive networks. Based on the analyses of features of cognitive networks, a relevant interference model is first built over Rayleigh fading channels. Then, we propose a combined power allocation strategy in order to minimize the outage probabilities in the...
In this paper, we study cross-layer scheduling scheme on multimedia application which considers both streaming traffic and data traffic over cognitive ad hoc networks. A cross-layer design is proposed to optimize SU's utility, which is used as an approach to balance the transmission efficiency and heterogeneous traffic in cognitive ad hoc networks. A framework is provided for utility-based optimal...
Interference management in femtocell network is an important issue to achieve the network throughput gain as well as not degrading the throughput of the macrocell tier. In this paper we consider a MIMO femtocell network and propose an interference mitigation strategy using interference alignment (IA) to mitigate the interference at the macrocell users (MUEs) caused by femtocell base stations (FBSs)...
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.