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 heterogeneous MPSoCs, memory interference between the CPU and realtime cores is a critical impediment to system performance. Previous memory schedulers adopt the classic two-tier queuing system, but unfortunately the use of two-tier queuing deteriorates the QoS of scheduling policies. In this paper, we propose the Single-Tier Virtual Queuing (STVQ) memory controller for efficacious QoS-aware scheduling...
Spectrum trading creates more accessing opportunities for secondary users (SUs) and economically benefits the primary users (PUs). However, it is challenging to implement spectrum trading in multi-hop cognitive radio networks (CRNs) due to harsh cognitive radio (CR) requirements on SUs' devices and complex conflict and competition relationship among different CR sessions. Unlike the per-user based...
In this work, we consider a multi-hop cognitive radio network with multiple flows. The challenges induced by the random behaviors of the primary users are investigated in a stochastic network utility maximization framework. To fully utilize the scarce network resource, we propose an optimal traffic splitting scheme for each source node to explore multiple paths effectively. In addition, the algorithm...
A new end-to-end available bandwidth measurement method based on the parity-packet pair model is proposed on the basis of analyzing the relationship between the separation time and background traffic of the packet pair. This method breaks the constraint that the tense link and the bottleneck link must be the same link, and is able to measure the end-to-end available bandwidth, even in many complex...
In this paper, a new variant of the standard knapsack problem is investigated and applied in cognitive radio networks. More specifically, the centralized spectrum allocation in cognitive radio networks is formulated as a multiple multidimensional knapsack problem. We propose an exact solution and a heuristic algorithm with guaranteed performance. The performance of the proposed algorithms are compared...
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.