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可控网络环境下的P2P流媒体分发是近期的研究热点.利用帮手节点协助分发是可控P2P特有的分发方式,目前这方面的研究还很少.针对已有方案存在的问题,提出一套帮手节点协助的流媒体分发方案,对方案的体系结构、资源分配、资源调度等算法进行详细的描述.与其他方案相比,本方案无须对媒体数据进行特殊编码处理,与数据驱动模式完全兼容.实验证明,非编码的帮手协助机制可以极大地提升系统性能,方案是可行、高效的.
P2P streaming media distribution under controllable network environment is a recent research hotspot.How to use helper nodes to assist distribution is a unique distribution mode of controllable P2P.At present, there are few researches in this field.Aiming at the existing problems in the scheme, Helper node assisted streaming media distribution program, the program architecture, resource allocation, resource scheduling algorithms described in detail compared with other programs, this program without special media data encoding, fully compatible with the data-driven mode Experiments show that the non - coding helper assistance mechanism can greatly improve system performance, and the solution is feasible and efficient.