Cache Management Method for Distributed Virtual Environment Based on Interest Behavior

Abstract

The invention relates to an interest behavior based distributed virtual environment cache management method. The distributed virtual environment cache management method includes the following steps: establishing an interest cluster according to a group relation and behavior track of an node embodiment in a virtual scene, forming a node logic network, wherein a scene zone picked by an interest cluster nodes in a roam process is defined as an interest domain, and scene data in the interest domain is a cache management object of the interest cluster; dividing data in cache spaces of the nodes into five states, wherein mutual transformation of the cache states maps a cache management process; establishing a direct predecessor node set on the basis of roam behaviors of the nodes and scene data features; giving a node cache state transformation algorithm; and providing a rejecting strategy of scene resource caches on the basis of the cell request rate and the data reuse degree, and establishing an autarkic structural scene resource network. Compared with the prior art, the interest behavior based distributed virtual environment cache management method is high in scene data sharing degree, is stable in neighbor structure, is high in resource positioning efficiency, and is high in node resource utilization rate.

Description

technical field [0001] The invention relates to the field of distributed virtual environment resource management, in particular to a distributed virtual environment cache management method based on interest behavior. Background technique [0002] With the increasing demand for human-computer interaction immersion, 3D virtual technology has been widely used in the construction of most scenes, such as virtual cities, industrial simulation, online games and so on. Since the current limited network bandwidth still cannot meet the multi-user real-time transmission of massive 3D data, people introduce P2P technology into the transmission mechanism of virtual scenes to make full use of the transmission capacity of each user node to improve the transmission efficiency of the system. [0003] In the P2P-based mass virtual scene transmission strategy, the cache data update mechanism is an important part. The user's behavior pattern in the distributed virtual environment has its own u...

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Problems solved by technology

[0005] 1) The degree of data sharing is low: the general cache update algorithm does not fully consider the scene distribution characteristics and user behavior characteristics in the distributed virtual environment, and does not analyze the data update trend from an overall perspective, resulting in a poor success rate of data requests and data sharing. low level

[0006] 2) The neighbor table jitters violently: the roaming path of the avatar in the virtual scene has strong randomness, and the data loading is nonlinear. The existing cache management algorithm will cause frequent updates of the node neighbor table, frequent information interaction, and data Problems such as low real-time transmission

[0007] 3) Low utilization of node resources: peer-to-peer network nodes are highly heterogeneous, and the bandwidth performance and cache capacity of nodes are quite different. The current cache management algorithm does not fully consider these performance indicators and does not make full use of each node. Resources

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