Multi-Service Routing Algorithm Based on GEO/LEO Satellite Networks

With regarding to the unbalanced load and the multimedia service of multimedia QoS requirements in GEO/LEO double layer satellite networks, a GEO/LEO double layer satellite networks multi-service routing algorithm is proposed. Based on satellite network topology dynamic discretization, the algorithm defined link initial weights with delay and residual bandwidth and introduced the concept of key link. Combining business utilization to adjust different business link initial weights, so as to allocate network resources reasonable, content a variety of QoS requirements and optimize the satellite network link utilization. The simulation results show that the algorithm not only guarantees the delay requirements of different priority business, but also upgrade the properties of throughput and load balancing relatively, improve the performance of satellite network system as a whole.