Construction of Service Composition Chain Relying on Atomic Capacity over Re-SCNet

Aiming at the flexibility, mobility, scalability and other problems in current existing network architectures, this paper proposes a Reconfigurable Service-Centric Network(Re-SCNet) architecture to meet the needs of mass diverse customer service of the future network. Network function combination is one of the main directions to enhance the adaptability of the Internet. Re-SCNet mainly concentrates on the following three points: firstly, decomposes the network layer and transport layer into the atomic capacities which is fine-grained building blocks; Secondly, builds combination chains by combining atomic capacities dynamically inside the node in an optimal way, then forms reliable AS which can be identified and invoked by network business. Finally, a nonlinear integer optimal problem is formulated for the composition of atomic capacities driven by users' requests, and the dynamic programming(DP) algorithm is proposed to reach an appropriate balance between computation costs and optimal solutions. We implement the prototype system based on innovation experiment platform NetFPGA-lOG of reconfigurable network and verify the feasibility of Re-SCNet, simulation results show that DP has a better performance in time consuming, the number of iterations, and the utility value.