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Opportunistic Network Coding (ONC) has attracted much attention recently. The main improvement of ONC over the traditional network coding is that ONC allows the encoding node to decide whether it employs network coding based on the status of all its input streams. However, due to the nature of fading, wireless links may not always be reliable. Thus, the performance gain of ONC over traditional methods...
Network Coding can greatly increase the network transmission efficiency by combining multiple input packets into one packet algebraically before forwarding. However, the first arriving packets need to wait for the later ones before coding, which may cause additional delay. In this work, we will investigate the optimal queuing and scheduling strategy that can minimize the delay introduced by network...
We first consider a topology consisting of one source, two destinations and one relay. For such a topology, it is shown that a network coding based cooperative (NCBC) multicast scheme can achieve a diversity order of two. In this paper, we discuss and analyze NCBC in a systematic way as well as compare its performance with two other multicast protocols. The throughput, delay and queue length for each...
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