Dynamic frequency hopping

One of the key challenges of the cognitive radio based wireless networks, such as IEEE 802.22 wireless regional area networks (WRAN), is to address two apparently conflicting requirements: assuring Quality of Services (QoS) satisfaction for services provided by the cognitive radio networks, while providing reliable spectrum sensing for guaranteeing licensed user protection. To perform reliable sensing, in the basic operation mode on a single frequency band (the so-called "listenbefore-talk" mode) one has to allocate Quiet Times, in which no data transmission is permitted.

Source: Wikipedia — Dynamic frequency hopping (CC BY-SA 4.0)

Dynamic frequency hopping

One of the key challenges of the cognitive radio based wireless networks, such as IEEE 802.22 wireless regional area networks (WRAN), is to address two apparently conflicting requirements: assuring Quality of Services (QoS) satisfaction for services provided by the cognitive radio networks, while providing reliable spectrum sensing for guaranteeing licensed user protection. To perform reliable sensing, in the basic operation mode on a single frequency band (the so-called "listenbefore-talk" mode) one has to allocate Quiet Times, in which no data transmission is permitted.

This neuron ends here.

Source: Wikipedia "Dynamic frequency hopping" · CC BY-SA 4.0

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