A named data networking prediction-based mobility solution in space–air–terrestrial networks

With the rapid development of satellite constellations and mobile devices, multimedia-content transfer in space–air–terrestrial networks (SATNs) has become increasingly popular. Governed by the current internet protocol-based architecture and the distance between the space and the ground, real-time transmissions of multimedia encounter an enormous challenge. Recently, named data networking has been considered to be a promising approach for solving this problem in SATN scenarios. However, a new issue, producer and consumer mobility management, arises in this approach. In this paper, we propose a location prediction-based scheme to reduce the round-trip time during the handover process and further enhance the system throughput, as well as to enable the producer and consumer to simultaneously move from an old access point (AP) to a new AP. Moreover, the proposed scheme can be applied in two kinds of SATN scenarios. Finally, the effectiveness of the proposed scheme is verified by simulations.