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.
In this paper, we study the resource allocation in a device-to-device (D2D) communication underlaying green cellular network, where the base station (BS) is powered by sustainable energy. Our objective is to enhance the network sustainability and efficiency by introducing power control and cooperative communication. Specifically, we propose optimal power adaptation schemes to maximize the network...
Wireless multi-media service and real-time applications are becoming increasingly popular in our daily life. These services put forward more requirements for quality of service (QoS). Cooperative technology, which takes more advantage of wireless channel resource, can improve the quality of communications. Among the cooperative technologies CARD (Cooperative Access with Relay's Data) is one of the...
In wireless systems where half duplex transceivers are employed, most existing practical cooperative protocols achieve a spectral efficiency of 0.5 symbols per channel use (pcu). Recently a decode-and-forward protocol was developed to achieve a spectral efficiency of 2/3 symbols pcu. But there is no practical amplify-and-forward (AF) protocol that can achieve a spectral efficiency higher than 0.5...
The distributed relay selection protocol recently developed by Bletsas et. al. provides a simple and practical mean of achieving cooperative diversity. However, for cooperative networks where relays employ the decode-and- forward (DF) method to send information, it cannot achieve full diversity unless each relay knows whether it decodes correctly or not. Moreover, the criterion used to select the...
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.