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Aging in Network Coding

机译:网络编码中的老化

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摘要

With network coding, received packets are linearly combined together and broadcasted over the network. Several techniques exist in the literature dedicated to the process of combining packets. However, these techniques focus on forwarding and decoding coded packets without taking into consideration the life cycle of each individual packet. By neglecting this issue, a packet might live forever in coded messages introducing an overhead on the coding/decoding process. In this letter, we introduce the concept of aging that limits the existence of a packet within coded messages. Statistics about the effect of aging on the size of coded messages are provided in order to determine the best tradeoff between the number of required transmissions and then the throughput gain on one hand and the buffering size and then the decoding complexity on the other hand.
机译:使用网络编码,将接收到的数据包线性组合在一起并在网络上广播。文献中存在几种专门用于组合分组过程的技术。但是,这些技术专注于转发和解码编码的数据包,而不考虑每个单独数据包的生命周期。通过忽略此问题,数据包可能永远存在于编码消息中,从而在编码/解码过程中造成开销。在这封信中,我们介绍了老化的概念,该概念限制了编码消息中数据包的存在。提供有关老化对编码消息大小的影响的统计信息,以便确定所需传输的数量,然后一方面的吞吐量增益和另一方面的缓冲大小以及解码复杂度之间的最佳折衷。

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