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为提高组播通信中数据传输的可靠性,提出了一种带有社会关系感知的组播路由机制,源节点采用喷泉码对原始数据进行编码,并结合相遇节点与会话目标节点的关系类型以及相遇历史信息选择合适的中继节点转发编码数据;同时,对接收到的编码数据进行冗余检测,以减少不必要的编码数据转发.数值结果表明:所提出的机制能够以较低的网络开销实现较高的数据投递,提高了网络资源利用率.
In order to improve the reliability of data transmission in multicast communication, a multicast routing mechanism with social relationship perception is proposed. The source node uses fountain code to encode the original data, and combines the relationship type between the meeting node and the session target node. And meet the historical information to select the appropriate relay node to forward the encoded data.At the same time, the received encoded data is redundantly detected to reduce the unnecessary encoded data forwarding.Numerical results show that the proposed scheme can reduce the network overhead Achieve higher data delivery, improve the utilization of network resources.