Visible to the public Uplink Capacity Optimization for High Throughput Satellites using SDN and Multi-Orbital Dual Connectivity

TitleUplink Capacity Optimization for High Throughput Satellites using SDN and Multi-Orbital Dual Connectivity
Publication TypeConference Paper
Year of Publication2022
AuthorsDazhi, Michael N., Al-Hraishawi, Hayder, Shankar, Mysore R Bhavani, Chatzinotas, Symeon
Conference Name2022 IEEE International Conference on Communications Workshops (ICC Workshops)
Date Publishedmay
KeywordsConferences, coupled congestion control, Dynamic scheduling, Heuristic algorithms, pubcrawl, resilience, Resiliency, Satellites, Scalability, security, Software algorithms, System performance, Throughput
AbstractDual Connectivity is a key approach to achieving optimization of throughput and latency in heterogeneous networks. Originally a technique introduced by the 3rd Generation Partnership Project (3GPP) for terrestrial communications, it is not been widely explored in satellite systems. In this paper, Dual Connectivity is implemented in a multi-orbital satellite network, where a network model is developed by employing the diversity gains from Dual Connectivity and Carrier Aggregation for the enhancement of satellite uplink capacity. An introduction of software defined network controller is performed at the network layer coupled with a carefully designed hybrid resource allocation algorithm which is implemented strategically. The algorithm performs optimum dynamic flow control and traffic steering by considering the availability of resources and the channel propagation information of the orbital links to arrive at a resource allocation pattern suitable in enhancing uplink system performance. Simulation results are shown to evaluate the achievable gains in throughput and latency; in addition we provide useful insight in the design of multi-orbital satellite networks with implementable scheduler design.
Citation Keydazhi_uplink_2022