2005 IEEE

这是一个典型的Ad hoc场景。紧急情况下的临时自组网络。虽然之前的论文中把它标记为out-of-band global coverage，但这个也是分组的，每个组有个gateway。

核心采用了Spectrum  Pooling，Distributed Spectrum Assignment。

“Spectrum pooling serves as a physical layer signalling
for detection of primary users, while DCA serves as a scheme
for data exchange and signalling on the network layer.”

。

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