cognitive radio


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cognitive radio

Wireless communications techniques that can sense the signals in the environment and change channels in real time. Such systems must accurately detect the type and bandwidth of the channels transmitting in the vicinity. Cognitive radio (CR) has become an important issue in order to allow the same limited spectrum to be shared with the increasing number of wireless devices in the home, office and industrial facilities. See Internet of Things, M2M, 802.11ah, 802.11af and 802.22.
References in periodicals archive ?
The company has developed innovative cognitive radio technologies for challenging wireless applications in a broad range of the frequency bands.
Cognitive radio networks (CRNs) have emerged as a promising technology to mitigate the increasing spectrum-scarcity problem.
Where spectrum is used on an exclusive basis, parties could negotiate ways to access frequencies any time a cognitive radio technology (deployed, for instance, in the radio systems of the lessee) senses white spaces available for transmissions.
Cognitive Radio studies will continue but, in the near term, it will be advances in waveform development and, most significantly, portability, which will give tomorrow's radios the voice they will deserve.
Cognitive radio is believed by editors Zhang (Simula Research Laboratory, Norway), Zheng (Southeast U.
WISE studies efficient use of TV-band spectrum resources through cognitive radio technologies and geolocation databases.
Cognitive radio systems obtain knowledge and then adjust their operational behavior based on that information.
Cognitive radio for flexible mobile multimedia communicationsed, in Acoustics, Speech and Signal Processing (ICASSP07).
This is followed by several chapters that provide in-depth coverage of next-generation wireless standards, ad hoc and mesh network protocols, opportunistic delivery and delay tolerant networks, sensor network architectures and protocols, cognitive radio networks, vehicular networks, security and privacy, and experimental systems for future Internet research.
Key industry players, regulators, operators, manufacturers and research institutions gathered in Geneva at an ITU Workshop on White Spaces and Cognitive Radio Systems (CRS).
Cognitive radio technology applications for wireless and mobile ad hoc networks.
Chandramouli has proposed three topics on cognitive radio networks and one on social networks.

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