针对层次式P2P系统中恶意超级节点频繁离开网络导致系统不稳定甚至崩溃的问题,提出一种新的基于信誉的超级节点选择算法.建立节点基于历史交换回馈信息的信誉评估算法,以信誉评估为基础,构建信誉感知的超级节点选择算法,选择信誉高的节点为超级节点.理论分析和仿真结果表明,该算法有效地提高了系统的稳定性.
In the P2P Hybrid Structure,it makes the system fluctuate,even makes the system collapse when hostile superNode leaves the system frequently.Therefore,we proposed a new Reputation-Aware SuperNode Selection Algorithm to make the system stable.It built the reputation model which was based on the history interaction feedback,and then built the reputation-aware superNode selection algorithm,selecting the high reputation node as the superNode.Simulation and analysis show that when it selected high reputation node for SuperNode,the frequency that the superNode leaves the system is reduced and the system's stabilization is improved.