An approach to deploy service function chains in satellite networks

Virtual Network Function Placement in Satellite Edge Computing With a Potential Game Approach

“…For software defined satellite networks, the VNF placement problem has been investigated in [9], [17], [18]. The authors in [9] formulated the VNF placement problem as an integer nonlinear programming problem in space-air ground integrated networks and proposed a greedy algorithm to address it.…”

“…The authors in [17] discussed the problem of VNF placement to minimize the cost in software defined satellite networks and proposed a time-slot decoupled heuristic algorithm to solve this problem. In [18], an approach of deploying VNFs in satellite networks was presented to minimize the end-to-end service delay.…”

“…The other aim is to provide computing services for as many user requests as possible in a satellite network when the minimum overall deployment cost is guaranteed. To this end, we propose a decentralized resource allocation approach for deploying VNFs to satellites [17], [18]. When an IoT user needs to offload its computation task to satellites for obtaining computing service, a user request from the IoT user will be first sent to satellite networks in order to obtain an access permission.…”

Low-Latency and Resource-Efficient Service Function Chaining Orchestration in Network Function Virtualization

“…Cai et al [30] aimed to achieve a flexible service orchestration for satellite networks with minimal end-to-end service delays. Based on the general NFV-enabled architecture, they built a time-varying satellite communication network model and novel forms of SFC requests.…”

“…Similar with Ref. [17], we assume that each node has 2000 computing resources, each link has 2000 Mbps bandwidth resources, and the end-to-end delay of each link follows a uniform distribution, U (30,130). In the experiment, we generate 500 SFC requests per group.…”