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CGRA (Coarse-Grained Reconfigurable Array) is competitive hardware architecture for streaming applications due to its excellent tradeoff between programmability and efficiency. However, the efficiency of CGRA highly depends on how applications are mapped onto it with optimized operation placement and data routing. In the routing procedure, data are transferred through different processing elements...
Cloud data center is becoming more and more important for tenants because cloud resources and associated services can be shared by multi-tenant. Although resource isolation and traffic control, which are effective ways to protect the QoS of tenants, have been used extensively, the topology of the network needs to be further studied extensively. In this paper, combining VN with SDN, a topology-aware...
To resolve the problem that the face detection is slow and detection efficiency is low in complex background, this thesis adopts double color space for color modeling based on YCbCr color space and RGB color space, and on this basis we adopt Adaboost algorithm for face detection. Based on the research of Adaboost algorithm, this thesis proposes improvements on the Adaboost training process and detecting...
Path motion object detection based on video is a fundamental part of intelligent transportation systems, In the aspect of background extraction, this paper compared all existing theories and algorithms, aimed at specific objects (city expressways or high-speed Road), and combined with the virtual loop set method. This paper proposed an extraction and updating algorithm based on the sub-segmentations...
Fast Internet growth and increase in number of network attacks make network security essential in recent years. In order to evaluate the network situation comprehensive and objectively, the Network Security Index System is proposed. However, the Network Security Index System is developed to meet the specific requirement, and has the shortcomings in re-development and maintenance. This paper propose...
Routing problems based on cooperative transmission for multi-hop wireless Ad hoc network have been studied in this paper. Inspired by Multipoint Relay computation, a cooperative routing algorithm is proposed in Ad hoc network, which select cooperative neighbors for cooperative transmission by checking whether the links between the node and its neighbors are symmetric or not. The performances of the...
The users in a cognitive radio system should employ an efficient power allocation algorithm to share the spectrum with the primary user and avoid interference to them. This paper proposes a power allocation algorithm for distributed cognitive radio systems, which can guarantee transmitting opportunities for more cognitive users while not impairing the QoS of primary users. The simulation results show...
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