Transportation dynamics on networks of heterogeneous mobile agents

Zhu Su, Sannyuya Liu, Weibing Deng, Wei Li and Xu Cai

Physica A: Statistical Mechanics and its Applications, 2019, vol. 523, issue C, 1379-1386

Abstract: Based on transportation networks of mobile agents, this paper discusses the condition under which the communication radii of mobile agents obey the power-law distribution. The analysis of network structure indicates that out-degrees obey a power-law distribution, while in-degrees follow a Poisson distribution. Simulation results reveal that: (i) there exists a critical value of package generate rate Pc, which defines the free-flow state and congested state. (ii) In the free-flow regime, the average traveling time T is small and independent of the packet generation rate P, but the average path length L increases with the growth of P and is related to a traffic awareness parameter h. (iii) The larger the heterogeneous exponent α of the communication radii is, the lower the transport efficiency of the network would be. (iv) There exists an optimal traffic awareness parameter h that maximizes the critical value Pc. (v) The critical value Pc decreases with the heterogeneous exponent α, increases with the network size N, and decreases with the speed v until v reaches an appropriate value.

Keywords: Traffic dynamics; Networks of heterogeneous mobile agent; Adaptive routing strategy (search for similar items in EconPapers)
Date: 2019
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:523:y:2019:i:c:p:1379-1386

DOI: 10.1016/j.physa.2019.04.062

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