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.
Combining with software-defined networking and virtualization technology, Network Function virtualization (NFV) has been proposed as an important technology for constructing scalable network. VNF (Virtual Network Function) redeployment is a critical step for dealing with network evolve. Due to the inner state consistency constraints, VNF migration to a new location is major challenge for redeployment...
Flexible channelization can enhance spectrum efficiency by adapting channel bandwidth and center frequency compared with traditional fixed width channel. The key challenge of this new mechanism lies in how to determine proper channel width for each link in a distributed manner without coordination. In this work, we investigate the spectrum sharing problem with flexible channelization from game-theoretic...
In the practical wireless cognitive radio networks (CRNs), the secondary users (SUs) usually show different favors to spectrum attributes, which brings new challenges to spectrum allocation. How to reduce the communication cost and allocate the spectrum according to favors is a meaningful topic. Prior skycube solution, which consists of all possible non-empty skylines, is not suitable for power-limited...
Mean-Shift (MS) is a powerful nonparametric clustering method. Although good accuracy can be achieved, its computational cost is particularly expensive even on moderate data sets. In this paper, for the purpose of algorithmic speedup, we develop an agglomerative MS clustering method along with its performance analysis. Our method, namely Agglo-MS, is built upon an iterative query set compression mechanism...
This paper address the important issues of strategies of enhancing QoS for video transmission over 3 G wireless network, by taking the time-varying wireless channel condition and video codec characteristics into account. First, we present an end-to-end transport architecture for video streaming over 3G wireless network. Second, we analyse method of measurements of error rate and throughput. Third,...
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.