Results 11 to 20 of about 106,664 (319)
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Newport, Calvin Charles +1 more
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Cognitive radio networks [PDF]
In recent years, the development of intelligent, adaptive wireless devices called cognitive radios, together with the introduction of secondary spectrum licensing, has led to a new paradigm in communications: cognitive networks. Cognitive networks are wireless networks that consist of several types of users: often a primary user (the primary license ...
Natasha Devroye, Mai Vu, Vahid Tarokh
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Deterministic Communication in Radio Networks [PDF]
In this paper we improve the deterministic complexity of two fundamental communication primitives in the classical model of ad-hoc radio networks with unknown topology: broadcasting and wake-up. We consider an unknown radio network, in which all nodes have no prior knowledge about network topology, and know only the size of the network $n$, the maximum
Artur Czumaj, Peter Davies 0001
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Deterministic Blind Radio Networks [PDF]
Ad-hoc radio networks and multiple access channels are classical and well-studied models of distributed systems, with a large body of literature on deterministic algorithms for fundamental communications primitives such as broadcasting and wake-up. However, almost all of these algorithms assume knowledge of the number of participating nodes and the ...
Artur Czumaj, Peter Davies 0001
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Structuring unreliable radio networks [PDF]
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Keren Censor-Hillel +4 more
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Optimizing cooperative cognitive radio networks with opportunistic access [PDF]
Optimal resource allocation for cooperative cognitive radio networks with opportunistic access to the licensed spectrum is studied. Resource allocation is based on minimizing the symbol error rate at the receiver.
Radaydeh, Redha M. +11 more
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Noncooperative equilibrium solutions for spectrum access in distributed cognitive radio networks [PDF]
This paper considers the problem of channel selection and dynamic spectrum access in distributed cognitive radio networks. The ability of a cognitive radio to adaptively switch between channels offers tremendous scope to optimize performance.
Zhong Fan +9 more
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Energy‐efficient reporting scheme for cognitive radio networks
Cooperative spectrum sensing in cognitive radio network consumes a large amount of energy during spectrum sensing and reporting. An energy‐efficient reporting scheme called the reduced energy consumption scheme for reporting has been proposed to reduce ...
Sudhamani Chilakala +2 more
doaj +1 more source
A large volume of research has been conducted in the cognitive radio (CR) area the last decade. However, the deployment of a commercial CR network is yet to emerge. A large portion of the existing literature does not build on real world scenarios, hence, neglecting various important aspects of commercial telecommunication networks.
Konstantinos Pelechrinis +3 more
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Fiber link design considerations for cloud-Radio Access Networks [PDF]
Analog radio over fiber (RoF) links may offer advantages for cloud-Radio Access Networks in terms of component cost, but the behavior of the distortion with large numbers of subcarriers needs to be understood. In this paper, this is presented in terms of
Luis C. Vieira +7 more
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