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Paper improved dynamic queue assignment algorithm cross — layer optimization unequal protection under IEEE 802.11e was proposed. In this algorithm, queue AC[1] and AC[0] were utilized to transmit video frame. Queue priorities, which were utilized to map with video frame priorities, were calculated accord to queue status. The proposed algorithm assigned a queue for a video flame according to the priority...
Vehicle Routing Problems have been extensively analyzed to reduce transportation costs. More particularly, the Dynamic Vehicle Routing Problem with Time Windows (DVRPTW) imposes the period of time of customer availability and the request time of customer as two constraints, which precisely reflects the real world situations. Using minimization of the total distance as the main objective to be fulfilled,...
Artificial bee colony (ABC) algorithm as a new optimization algorithm invented recently has been applied to solve many kinds of combinatorial and numerical function optimization problems. The existing forms of ABC algorithms perform well in most cases. However, ABC algorithm is still lack of capacity for optimizing high dimensional problems without taking the interactions within each dimensional variables...
Localization constitutes one of the key technologies in wireless sensor networks. In the localization method based on anchor node assistance, the motion path of anchor node exerts huge influence on location performance. With the motion path of anchor node pre-determined, the static path planning fails to make full use of the real-time information during the localization, due to which it can not be...
Reactive power optimization of power system is a complicated multi-objective, multi-constraint combination optimization problem, particle swarm optimization (PSO) algorithm is the most commonly used algorithm to solve this problem. Aiming at the disadvantages of PSO algorithm, this paper came up with an improved particle swarm optimization (IPSO) algorithm. Firstly, it improved the particle population...
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