| 摘要: |
| 高层体系结构HLA(high level architecture)支持仿真应用间的互操作和可重用,受资源的限制,基于因特网的分布仿真面临着系统可扩缩性的挑战.HLA提供数据分发管理机制，为提高系统可扩缩性提供了可能.分析了HLA中数据分发管理机制的实现途径,针对存在的问题提出了层次化的组播地址分配策略,解决了组播地址数量有限与仿真结点机冗余数据接收之间的矛盾,同时也为仿真数据的可靠发送及数据打包提供了有力的支持. |
| 关键词: 高层体系结构 可扩缩性 数据分发管理 数据过滤 路径空间 组播通信 |
| DOI： |
| 分类号: |
| 基金项目:国家自然科学基金资助项目(69525205) |
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| A Hierarchical Multicast Address Allocating Strategy in Data Distribution Management |
|
SHI Yang,LING Yun-xiang,JIN Shi-yao,ZHANG Chen-xi
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| Abstract: |
| HLA (high level architecture) is a new generation of technical framework for distributed interactive simulation which supports simulation interoperability and reusability. But distributed interactive simulations under Internet environment face the challenge of system scalability due to the limited resources of bandwidth and computation. HLA provides the possibility for system scalability through data distribution management (DDM). In this paper, the technical approach to DDM is discussed and a new strategy is proposed for multicast address allocation. This new strategy uses a hierarchical method to allocate addresses to solve the problem of contradiction between number of multicast addresses supported by hosts and the redundant data received by hosts. The new strategy also supports for the reliable transferring and data bundling of simulation data. |
| Key words: high level architecture scalability data distribution management data filtering routing space multicast communication |
