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The search time of traditional ant colony Algorithm (ACA) is too long, and it tends to trap in local optimizations. In this paper, a fidelity-based ACA with Q-learning is presented to solve above-mentioned problem and applied for control of quantum system. In the fidelity-based ACA with Q-learning, fidelity is used in heuristic function, which can help the system converge to the optimal solution....
Blind separation for dependent sources and multi-Gaussian sources is a challenging problem. This letter proposes a new adaptive blind source separation algorithm, which is referred to as vector auto-regressive diagonalization (VAR-JD), to deal with this problem. This algorithm estimates demixing matrix by matrix joint JD of a set of matrices containing the estimated VAR coefficients. Compared with...
In this paper, a new gradient optimized blind source separation algorithm (GOA) which aims at improving the convergence performance is proposed. This algorithm modifies the gradient of cost function to make the iteration process of separation matrix closer to its change pattern. To be more specific, by adding the difference value between current time gradient and previous time gradient to the adaptive...
Cognitive radio (CR) is a promising paradigm proposed to cope with the spectrum scarcity problem by reusing the authorized idle spectrum resource. Accurate spectrum sensing of CR is important for raising the utilization efficient of spectrum resource meanwhile avoiding interference to authorized users. In this paper, a new efficient cooperative spectrum sensing algorithm based on the BP neural network...
In this paper, blind signal separation algorithms based on Gaussian mixture model of complex-valued sources are introduced. Compared with the traditional algorithms for complex-valued signals, they have two advantages: first, since they are adaptive, the changes in the environment can be tracked; second, the probability density function matching mechanism is applied to the algorithms through a Gaussian...
Software defined networking (SDN) decouples control plane functionality from the data plane and features the presence of programmable dumb network devices, which have no or little intelligence and take control commands from a central controller at the control plane. The central controller is responsible for controlling data plane hardware and optimizing network operation. Centralized network optimization...
Due to the application of operations support system (OSS), the telecom operators increasingly have the capability to accumulate huge amounts of customer data in large databases. However, much of the useful marketing insights into customer characteristics and their purchase patterns are largely hidden and untapped. Current emphasis on customer relationship management makes the marketing function an...
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