Abstract
Unmanned vehicles are widely used in the military field. They are equipped with a wide variety of sensors so that they can flexibly complete tasks such as enemy surveillance. At present, unmanned vehicles generally control the movement by an obstacle avoidance system or an ultrasonic ranging system without considering the signal strength, which may cause poor communication. In this paper, we present a model based on signal strength for unmanned vehicles self-expansion to solve the problem. In the experiment, we consider and measure the relationship between signal strength, network bandwidth and packet loss rate, and select the optimal signal strength threshold. By applying this model, the vehicles group can realize the self-expansion and multi-hop communication of the vehicles in the network, which make the vehicles reach the maximum coverage areas and the optimal communication quality.
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