Πλοήγηση ανά Θέμα "Cognitive radio network"
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Joint packet retransmission and spectrum sensing for cognitive radio networks
(2014)We model and simulate a joint design of packet retransmission through a hybrid automatic repeat request (HARQ) protocol at the data link layer and spectrum sensing (SpSe) at the physical layer for cognitive radio networks ... -
The mutual benefits of primary-secondary user cooperation in wireless cognitive networks
(2014)In cognitive radio networks, secondary users (SUs) may cooperate with the primary user (PU) in order to obtain more transmission opportunities and thus maximize their throughput. The synergy consists in the following: the ... -
Outage Analysis and Realization Challenges of RIS-enabled Underlay CR Networks over Nakagami-m Fading
(2022)Metamaterials, i.e., reconfigurable intelligent surfaces (RISs), have become very promising and advancing rapidly due to the ability to manipulate electromagnetic (EM) waves. This feature essentially ensures the versatile ...