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In this paper, an improved genetic algorithm to solve the unicast routing problem with QoS restrictions is proposed. The proposed algorithm uses real-coded strategy, which has unique crossover strategy, mutation strategy and fitness function, and in addition, the strategy of introducing alien species is adopted in the algorithm, in order to enhance the algorithm's global search ability. The simulation...
The single-source shortest path problem based on the road network has many obvious geographic spatial characteristics. By designing the spatial data model of the road network and analyzing the geometric characteristic of the spatial trend of the path we form a spatial restricted function which can reduce the cost of searching the shortest path in the road network. The spatial restricted function is...
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