Parcourir par sujet "Cognitive radio"
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Auction mechanisms for network resource allocation
(2010)In the autonomic Internet of the future, auction mechanisms arise as key methods for realizing efficient resource allocation. The major asset of auctions is their obliviousness to node utilities, which renders them capable ... -
Heterogeneous spectrum bands aggregation prototype with cognitive radio capabilities
(2015)This paper presents the design and simulation of an RF prototype that can provide dynamic carrier aggregation (CA) in future cognitive heterogeneous cellular networks including also access to heterogeneous technologies. ... -
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 ... -
Towards the efficient performance of LTE-A systems: Implementing a cell planning framework based on cognitive sensing
(2014)LTE and LTE-A have dominated as a 4G enabler protocol, adopted by the majority of the network providers worldwide. The efficient performance of an LTE network relies on the selected frequency within an operating band that ...