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.
The next generation of wireless networks (e.g., Long Term Evolution (LTE)and WiMAX) use multiple techniques to improve channel spectral efficiencies. In this paper we focus on one such technique, namely Coordinated Beam Switching (CBS). With CBS, each sector determines a sequence of beams (possibly with repetitions) over which it continuously cycles. Each sector independently determines its beam pattern...
In wireless transmission, hybrid automatic repeat request (HARQ) can improve the throughput performance by using error correction and error detection techniques when the signal quality is poor. In this paper, the effectiveness of HARQ in orthogonal frequency division multiple access (OFDMA) based wireless networks is studied. In OFDMA networks, every channel is split into a set of orthogonal sub-carriers...
In this paper, we extend the results of our previous work, which mainly focuses on homogeneous services, and discuss the heterogeneous scenario. A cross-layer design is proposed for IEEE 802.16/WiMax networks, in which three modules are added: 1) an M-gated scheduler; 2) an admission controller; and 3) a parameter controller. The parameter setting for the M -gated scheduler is based on performance...
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.