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中文摘要：
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。
英文摘要：
Based on burst clone, a burst encoding mechanism based on preemption is proposed to reduce burst loss rate. In the source edge nodes,some information data bursts （DBs） are encoded and a redundant DB is produced by the parity check code. In the core nodes, an information DB can preempt a redundant DB to reduce the contention from redundant DBs. And the burst loss rate of the information DB is reduced. In the destination edge nodes, the loss information DB in the core nodes can be recovered by the redundant DB. The proposed burst encoding mechanism is low computational complexity and efficiently reduces burst loss rate.
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