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Under the case of exponentially growth of wireless services and the scarcity of spectrum resources, cognitive radio (CR) has been proposed to access licensed channels opportunistically, and thus improve spectrum utilization. In CR devices, accurate spectrum sensing is the prerequisite for opportunistic access. The current cooperative spectrum sensing still cannot effectively exploit the temporal correlations...
Fault detection and prediction is one of the key technologies for health monitoring of in-orbit satellites. The fault detection and prediction methods for in-orbit satellites is studied by the data mining technology. The deep mining method for telemetry of the in-orbit satellite is studied. Then, several fault detection and prediction methods are proposed, which have been developed and used in fault...
An efficient scheduling algorithm can make full use of the network resources, particularly in the high-load network. In this paper, a new PCU scheduling algorithm is given, which is based on Nash Equilibrium, and aiming at making sure that all users in the network (both GPRS and EDGE users) can get the best speed as possible.
Landfill leachate pre-treatment was studied by Fenton reagent composed of FeSO4ldr7H2O and H2O2. The different effect factors of CODcr were studied, such as pH value, Fenton reagent under different dosages, the molar ratio of ferrous ion to H2O2 and reaction time. The results indicated: when the pH value was 3.0, the dosages of H2O2 was 0.25 mol, FeSO4ldr7H2O and H2O2 in the molar proportion was 10...
The paper is concerned with the problem of designing reliable linear-quadratic state-feedback control for a class of discrete-time singular linear systems. A reliable state-feedback control is designed for the case of possible actuator faults, and the proposed state-feedback controller guarantees that the closed-loop system is admissible and its quadratic performance index is bounded by a constant...
During the process of appearance and development of software engineering, the thought originality plays a very important role. The paper analyzes several examples of the thought originality promoting development of software engineering, such as, understanding software and software development, the form of structuring software development method, the form of object-oriented software development method...
Based on artificial immunity, this paper combines the artificial immune principle and non-dimensional parameters to put forward a rotating machinery fault diagnosis model and algorithm. The algorithm can be used to train the detectors with the unique character of the fault one by one mapping, the trained detector can be applied to a single and complex fault diagnosis; Using the dimensionless parameter...
High-speed switching, QoS provisioning, security, and mobility are main challenges faced with existing networks and to be confronted by NGN researchers and developers. To address these challenges, SUPANET has been proposed in recent years. But all works on SUPANET have been mainly devoted to high-speed switching and QoS issues, so far, there is no research on the mobility management of SUPANET. To...
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