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This paper considers the problem of delivering K different contents to D destinations from N sources in wireless networks. Traffic in opposite directions over two wireless hops can utilize the advantage of network coding (NC) in order to decrease the number of transmissions used. We call such coded hops as “NC-links”. On the other hand, the multicast (MC) links can transmit data to several nodes at...
In this paper, a QoS provisioning spectrum decision algorithm based on predictions is proposed in cognitive radio networks. By recording and analyzing the historical information, the algorithm can learn intelligently the rule of occupied spectrum by licensed users, and can predict the length of a spectrum hole, with the combination of the use's QoS request to provide a basis for spectrum decision...
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