Spatial spectrum reuse significantly enhances spectrum utilization but requires delicate
design to avoid cochannel interference. Instead of focusing solely on spectrum efficiency, we …

The auction mechanism is deemed to be an effective method to address the problem of
spectrum scarcity. Numerous spectrum auction mechanisms can alleviate spectrum …

Spectrum trading with secondary users (SUs) for monetary gains improves the inefficient
spectrum utilization of primary users (PUs) in the cognitive radio networks (CRNs). It is an …

Federated learning (FL) has rapidly evolved as a distributed learning paradigm, enabling
clients to collaboratively train models while retaining data privacy on their devices, w hich …

In cognitive wireless networks, spectrum owners (primary users, PUs) may lease the unused
spectrum to unlicensed users (secondary users, SUs). This spectrum is used to establish a …