Abstract
Distributed Integrated Modular Avionics System (DIMA) has attracted extensive attention in recent years, and the time-triggered Ethernet (TTE) supports the time triggering mechanism of DIMA system, so it has become the main protocol adopted by this system. In order to generate a network topology with lower architecture cost, load balancing and relatively short path, we studied the network topology optimization problem based on TTE. In view of the arbitrariness of TTE network topology, based on the analysis of time-triggered DIMA model, Floyd algorithm and simulated annealing algorithm are applied to realize topology optimization. The simulation results show that the proposed topology design and optimization method can not only effectively reduce network congestion, but also save network cost.
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