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Wireless spectrum is a limited and valuable resource for communications. However, wireless spectrum is known to be underutilized in spacial, temporal, and spectral domains. The dynamic spectrum access (DSA) of cognitive radio networks provides the capability to improve the spectrum efficiency by allowing secondary users to access the spectrum opportunistically without interfering primary users. The...
In this paper, we study the interference-aware broadcast scheduling problem, where all nodes in the Euclidean plane have a transmission range and an interference range equal to r and alphar for alphages1, respectively. Minimizing latency is known to be NP-hard even when alpha=1. The network radius D, the maximum graph distance from the source to any node, is also known to be a lower bound. We formulate...
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