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Network coding is a promising technology that increases the system throughput via reducing the number of transmissions for the packets delivered from the source node to the destination node in the saturated traffic scenario. Nevertheless, some packets can suffer from the metric of end-to-end delay. Since it takes the queuing delay in the intermediate node to wait for other packets to be encoded with (XOR). Therefore, in this paper, the authors analyze the delay according to the packet arrival rate and propose a new network coding scheme, iXOR (Intelligent XOR). It reduces the average delay even unsaturated traffic load through the Holding-strategy.
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