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94 results about "Virtual network operators" patented technology

Placement method of virtual network function based on genetic algorithm

The invention relates to the field of communication, and more particularly relates to a placement method of a virtual network function based on a genetic algorithm. The method comprises the followingsteps: S1, querying a system cache to judge whether a deployment result of a current type of SFC request exists, and if yes, skipping to step S4; if not, skipping to step S2; S2, sequentially selecting physical nodes and instances to be placed for a VNF in a service chain in combination with the calculation steps of the genetic algorithm; S3, mapping a virtual link of the SFC according to the VNFplacement situation obtained in step S2 to guide sequential transmission of data traffic; and S4, allocating requested physical resources to the SFC according to the deployment result. In the placement method provided by the invention, the resource relationship between the deployed VNF instances and the actually running VNF is clarified, and the count of VNF instantiation is limited to simulate the limited resources owned by an virtual network operator; and the processing of the SFC request is implemented by using as few VNF instances as possible, thereby prompting the rational use of the underlying physical resources of the entire network, and reducing the cost.
Owner:POWER DISPATCHING CONTROL CENT OF GUANGDONG POWER GRID CO LTD +1

5G cellular network virtualization resource allocation mechanism based on combined double auction

The invention discloses a resource allocation mechanism for a plurality of MVNOs (mobile virtual network operators) and a plurality of users in a 5G cellular network when the MVNOs serve as the business subject and participates in the market competition, so as to maximize the social welfare and market benefits. The virtualization technology greatly reduces the capital expenditure through the decoupling separation of services and equipment, and a flexible and high-efficiency resource allocation scheme is a research hotspot. Different from a mechanism which just gives consideration to the benefits of a seller in the market, the mechanism enables a virtual operator and a user to serve as the allocation main body, and gives consideration to the characteristics of massive MIMO, and is designed to be a combined double auction mechanism with various types of products and participants. In order to distinguish the QoS requests of different users, the mechanism introduces a utility function to guarantee the characteristics of virtualized in-chip customization. The mechanism achieves the dynamic allocation through a like-VCG pricing scheme and a double auction model with the competiveness, and achieves the win-win of the buyer and seller while achieving high allocation efficiency.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS

D2D (Device-to-Device) multicast resource allocation method in wireless network virtualization scene

The invention belongs to the technical field of wireless communication, and discloses a D2D (Device-to-Device) multicast resource allocation method in a wireless network virtualization scene. A virtual network operator implements virtualization of a physical network according to service types of users; according to geographic positions of the users and requested service contents, a cellular user group and a D2D multicast user group are determined; according to a service type required by each group of users, the cellular user group and the D2D multicast user group are partitioned and signed todifferent virtual networks; and each virtual network operator carries out base station selection, frequency band allocation and power control for the multicast user group signed to the virtual networkoperator, and in the major premise of ensuring limitation to a user communication rate and resources of the multicast group, the aim of maximization of system throughput is fulfilled. According to the invention, by combining a D2D communication technology with a multicast communication technology, the spectrum efficiency of a system can be promoted; and a wireless network virtualization technology is introduced, so that the users can acquire services with high service quality and high experience quality.
Owner:XIDIAN UNIV
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