基于Gossip的乐观复制，用于使用交互式中间件支持系统的高效延迟敏感流
A Gossip-based optimistic replication for efficient delay-sensitive streaming using an interactive middleware support system
摘要：
在共享资源的同时，由于缺乏以多客户端支持方式提供的所需资源，效率大大降低。这些资源通常会受到许多因素的影响，例如可用性的时间约束或所请求的复制文件块的节点洪泛。因此，复制的文件块应该被有效地传播，以使移动用户按需提供资源。这项工作考虑了一个跨层的中间件支持系统，通过使用每个设备的连接和社交互动，在跨层的方式，有效的延迟敏感的流。协作流式传输是通过虚拟复制的文件块策略实现的，该策略使用具有易感、感染、恢复和死亡状态的传染病的链式模型的基于转换的方法。基于Gossip的有状态模型强制移动节点是否托管一个文件块或没有，或者，当不再是一个块是需要的，以清除it.The建议的模型进行了彻底的评估，通过实验模拟采取措施的有效吞吐量EFF作为一个函数的数据包丢失参数的有效性相比，复制Gossip为基础的政策。
英文摘要：
While sharing resources the efficiency is substantially degraded as a result of the scarceness of availability of the requested resources in a multiclient support manner. These resources are often aggravated by many factors like the temporal constraints for availability or node flooding by the requested replicated file chunks. Thus replicated file chunks should be efficiently disseminated in order to enable resource availability on-demand by the mobile users. This work considers a cross layered middleware support system for efficient delay-sensitive streaming by using each device's connectivity and social interactions in a cross layered manner. The collaborative streaming is achieved through the epidemically replicated file chunk policy which uses a transition-based approach of a chained model of an infectious disease with susceptible, infected, recovered and death states. The Gossip-based stateful model enforces the mobile nodes whether to host a file chunk or not or, when no longer a chunk is needed, to purge it. The proposed model is thoroughly evaluated through experimental simulation taking measures for the effective throughput Eff as a function of the packet loss parameter in contrast with the effectiveness of the replication Gossip-based policy.
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