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Today, due to the popularity and convenience of wireless communications, people communicate with others by using mobile phones almost every day, as one of their important daily activities. Currently, LTE-4G is the mainstream of mobile communication. Recent studies on the upcoming LTE-5G wireless environments employ AES to protect delivered messages. However, using this cryptography standard to encrypt/decrypt...
With the market-oriented reform in power industry, the research on the optimal distribution of load in thermal power plant has highlighted the importance. This paper established a model of the optimal load distribution about turbine, which take the constraints of thermal power plant with the valve point effect. A practical example analysis has verified that this improved algorithm in particle swarm...
To cope with time-attribute and variations of event distribution in dynamic evolving process, an streaming process mining based on time series prediction and hybrid heuristic miner is proposed. A heuristic miner is improved based on post-task of activity in event logs to optimize the initial particle distribution for Particle Swarm Optimization. Furthermore, “aging factor” based on time series attribute...
We consider the distributed channel allocation problem in an asymmetrical opportunistic spectrum access (OSA) system where each secondary user possibly has different channel reward even in the same channel due to geographic dispersion. We formulate this problem as a Gale-Shapley stable theorem using game theory to optimize the sum reward of all secondary users. It is challenging to achieve the stable...
The paper has proposed the QoS route mechanism of the sensor network based on task delay and priority. The new control mechanism assigns the network resource proportionately according to the different priorities of tasks. The tasks with a higher priority can obtain more network resource in respect to the tasks with a lower priority, which will guarantee that the information of task occurrence can...
Due to diversity of data formats, missing of certain properties, imprecise records in heterogeneous literature databases, there exist duplicate records when integrating heterogeneous databases. Duplicate records lower the efficiency of information retrieval. In this paper, we propose an approach, named length filtering and dynamic weighting (LFDW) for duplicate records cleansing. There are three steps...
The IEEE 802.1 le standard allows an admission control (AC) criteria based on medium time calculation for contention-based wireless access. In this standard, medium time is derived from minimum physical layer (PHY) rate and static surplus bandwidth allocation (SBA) parameters. However, a pessimistic minimum PHY rate and fixed SBA would result in channel underutilization. Therefore, we propose an efficient...
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