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Cloud radio access network (Cloud-RAN) has been recognized as one of the most promising architectures for next generation wireless network. The features of Cloud-RAN include the central signal processing mechanism and the flexible information interaction among cloud platforms. The General- Purpose Processors (GPP) are a more efficient to multiplex computing resource in the cloud platform. In this...
Most of the greenhouse climate control equipments in China are on-off control. The control variables are discrete while the disturbance inputs (the outside air temperature, relative humidity and solar radiation, etc.) are continuous, so the microclimate system in greenhouses is a typical hybrid system. The outside air temperature and relative humidity are used as the disturbance inputs and the inside...
Context-aware computing is one of the key issues in virtual computing environment. This paper aims to compare the ontology-based context modeling and reasoning approach with the traditional non-semantic one. A general scenario of virtual computing is given about the dynamical service aggregation and evolution. And the context of the environment is modeled respectively using an OWL based way and a...
This article introduces a new type of remote intellectualized examination system. Besides auto-making test paper and intellectualized evaluating test paper and information source's management, etc, this examination system includes Simulation Realistic Environment Assessment Technology and Subject Base Fingerprint Technology, etc.
Applying estimation of distribution algorithms (EDAs) to solve continuous problems is a significant and challenging task in the field of evolutionary computation. So far, various continuous EDAs have been developed based on different probability models. Initially, the EDAs based on a single Gaussian probability model are widely used but they have trouble in solving multimodal problems. Later EDAs...
In order to prevent the malicious attack from reducing the accuracy of aggregation result in wireless sensor networks, it is necessary to perform the attack detection in the received readings of all the sensor nodes before the resilient aggregation processing. However, the detection probability of the attack detection algorithm presented in the literature is small, and its computation complexity is...
Performance analysis is a key issue in parallel network simulation. This paper proposes a new mechanism of parallel network simulation performance prediction. Analyzing the key factors of impacting parallel simulation performance, six parameters which may determine the time-cost of network simulation is presented. Then we adopt the Back Propagation (BP) network to approximate to the non-linear relation...
In this paper we firstly construct the category CRPOSRep with objects the same as CRPOSR (with as objects R-complete R-posets where R-limits preserve orders of approximating order family and as morphisms R-continuous mappings) and as morphisms e-p pairs. Secondly omega-chains, R-chains and R-completeness are defined in CRPOSRep. They are generalizations of omega-chains and omega-completeness in...
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