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In the problem of VMs consolidation for cloud energy saving, workload characteristics should be considered to make a more reasonable solution for VM placement. Different workload works in a varied CPU utilization during its work time according to its task characteristics. However, there are many works that evaluate energy consumption have the basic assumption that the CPU works on 100% full load....
With the development of streaming media technology, media scheduling in recent years has been a hot research topic, special algorithms implemented by software have solved the problem of bandwidth bottlenecks in backbone network which located in the central server of Video-On-Demand (VOD) system, it increased the efficiency of the entire system. Cloud storage technology is extensively applied, how...
For realizing the multi-services optimal transmission in the generalized optical burst switching (G-OBS) network, this paper proposed an intelligent services-aware burst assembly mechanism to maximize burst utilization and enhance scheduling flexibility.
Meeting the future requirements of higher bandwidth while providing ever more complex functions, future network processors will require a number of methods of improving processing performance. One such method will involve deeper processor pipelines to obtain higher operating frequencies. Mitigation of the penalty costs associated with deeper pipelines have achieved by implementing prediction schemes,...
Mesh-pull based P2P live media streaming system has gained a lot of interests and successes, and collecting key metrics in time from millions of peers to monitor the system level quality is very important for its successful commercial deployment. But the real-time monitoring still faces great technology obstacles, especially considering the dynamic and large-scale scenario which is very common in...
Caching mechanism has achieved great success in general purpose processor; however, its deployment in Network Processor (NP) raises questions over its effectiveness under the new context. In this study, we thoroughly evaluate the performance of caches in NP with architectural features like multicore, multithread, and integrated packet interface. Our major findings include: (1) In general, a sufficiently...
Nodes in mesh overlay multicast system don't have fixed parent-children relationship like that in trees and form neighbors. But in data-driven mesh and based on pulling method, for each packet, it still follows a certain tree and the parent-children relationship does exist. While having the powerful peers stay closer to the source may improve the performance, we make the peers of high out bandwidth...
A new modified signal - the stepped-frequency train of LFM pulses with modulation of MPS (minimum peak sidelobe) biphasic coding and Costas frequency coding is proposed, whose spectrum function and ambiguity function are deduced respectively. Then the processing measure of the ranging system is illustrated in detail and the principle of the measure is analyzed. Range and velocity estimation of the...
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