Available energy routing algorithm considering QoS requirements for LEO satellite network

Satellite networks are becoming an integral part of future network infrastructure. However, premature depletion of energy in some satellites caused by the limited capacity of batteries and the uneven distribution of network traffic poses a significant challenge. Therefore, we have a keen interest in designing an available energy routing algorithm for LEO satellite networks to balance energy usage. Firstly, a satellite available energy model has been established, which considers the output power of satellite solar panels and the energy consumption of satellite under the influence of Earth's obstruction. Then, our algorithm considered the different routing transmission requirements of network services and appropriately selected different decision factors to generate paths, which can reduce network routing energy consumption while meeting the delay requirements of services. Numerical result demonstrate that our algorithm can reduce energy consumption by about 12.53% and reduce packet loss rate by 23.72% compared with QoS-SR, which effectively improving the end -to -end delay of services and extending the life of satellite networks.