Opportunistic network resource dynamic allocation method based on service priorities

Abstract

The embodiment of the invention provides an opportunistic network resource dynamic allocation method based on service priority, which is applied to a current node carrying a service message in an opportunistic network, and the service message comprises a target delay for sending the service message, a message size of the service message and an identifier of a destination node. The method comprisessteps of obtaining the total number of nodes in the opportunity network, the average congestion degree of the social group of the current node, the cache space size of the current node and the initial priority of the service message; calculating the number of copies of the service message based on the target delay, the message size, the total number of the nodes, the average congestion degree ofthe social group, the cache space size of the current node and the initial priority of the service message; and acquiring a plurality of service message copies of the service message, and sending theacquired service message copies to a destination node with the identifier. The method can improve the service quality of the service to which the service message belongs.

Description

technical field [0001] The invention relates to the technical field of opportunistic networks, in particular to a method for dynamically allocating opportunistic network resources based on service priority. Background technique [0002] Opportunistic networks, also known as delay-tolerant networks, are widely used in emergency rescue, smart cities, remote areas, wildlife monitoring, and space communications. Moreover, the cache space of nodes in opportunistic networks is limited, and nodes can move freely in the network, making the cache space of nodes and the opportunity for business messages to be forwarded to become the most critical network resources in opportunistic networks. Moreover, the more cache space of nodes occupied by business messages, that is, the larger the number of copies of business messages, the greater the chance of business messages being forwarded, and the higher the QoS (Quality of Service) of the business to which business messages belong . It can...

AI Technical Summary

Problems solved by technology

In this regard, the above-mentioned allocation of network resources of the opportunistic network according to the fixed number of copies may easily lead to the allocation of network resources not suitable

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