为了降低突发丢失率,在分析突发克隆的基础上,提出了一种基于抢占的突发编码机制。在源边缘节点,采用奇偶监督码对信息突发进行编码,并产生冗余突发。在核心节点,信息突发有条件地抢占冗余突发,减少了冗余突发对信息突发的竞争,降低了核心节点处的信息突发丢失率。目的边缘节点,利用冗余突发恢复出丢失的信息突发。提出的突发编码机制实现简单,并能有效降低突发丢失率。 In order to reduce the burst loss rate, based on the analysis of burst clones, a preemptive burst coding scheme is proposed. At the source edge nodes, parity bursts are used to encode information bursts and redundant bursts are generated. At the core node, information bursts conditionally preempt redundant bursts, reducing the contention of redundant bursts to information bursts and reducing the information burst loss rate at the core nodes. The destination edge node recovers lost information bursts using redundant bursts. The proposed burst coding mechanism is simple and can effectively reduce the burst loss rate.