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Modern heterogeneous multiprocessor embedded platforms is important for the high volume markets that have strict performance. However, it presents many challenges that need to be addressed in order to be efficiently utilized for multitask applications. Since mapping and scheduling problems for multi processors belong to the classic of NP-Complete problems, common methods used to solve this kind of...
In the IEEE 802.11 wireless local area network (WLAN), when the number of node increases, the collision corresponding will increase, the channel utilization rate decline, the total throughput falls, which leads to system performance decline. In this paper, through in-depth analysis of the root cause of the problem, it designs a simple and effective solution - based on the number of nodes in the time...
This paper addresses the problem of multiple Unmanned Aerial Vehicles (UAVs) cooperative searching for several moving targets with a hybrid method, which is named VFRH. This method is a combination of the virtual force method and the receding horizon method. Its main idea is that the virtual force method is used to help the receding horizon method improve searching efficiencies and reduce the computational...
The Crane-umbrella Communication Jammer has become an important communication jamming equipment. During the interference process, the single jammer can cover a circular area and multiple jammers can be distributed to cover the target area without any vacancy, but it's a complex problem to distribute the jammers to use the least quantities of jammers, cover the maximal area and receive the signals...
This paper proposed an novel improved particle swarm optimizer (PSO) algorithm with global convergence performance. The global optimum position is unpredictable, so a random solution is introduced to the improved PSO as the best solution(Pg) in the end of every generation. The novel search strategy enables the improved PSO to make use of the uncertain information, in addition to experience, to achieve...
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