Mobile, Cellular, networks, 5G, 6G
Mobile and cellular networks are continuously evolving in terms of technologies, architectures and paradigms. 5G and beyond networks are more and more open to verticals, and are expected to offer higher flexibility levels and capacity, throughput, reliability, latency and massive access of connected objects. Technological evolutions at lower layers (related to advanced antenna systems, channel access and sharing techniques, larger spectrum, higher frequencies,…) drive new modeling approaches, new optimization problems for resource allocation algorithms. Moreover, these networks are evolving toward Service Oriented Architectures where almost all functionalities are software defined.
This implies that existing and new network services and functions can be instantiated and chained on demand and adapted to user requirements, to network and service contexts. These evolutions and the expected coexistence of multiple virtual networks (slices), require new approaches and solutions to network optimization, orchestration and management that constitute new challenges for the community. Our work in this context includes transport, resource allocation, admission control and pricing of typically heterogeneous user traffic, with different QoS requirements, in ways that are satisfactory to the different actors, especially network operators, service providers and end users. On the other hand, network services are expected to be user aware, and smartly adapt their functionalities according to users’ spatiotemporal behaviors (e.g., mobility, content interests, and traffic profiles, which are impacted by the time and location of users). In this context, smart adapted services requires the understanding and modeling of such behaviors followed by their leveraging in network services (e.g., network optimization, orchestration and management, resource allocation).