Results 11 to 20 of about 15,831,729 (172)
Information reuse in dynamic spectrum access [PDF]
2013 IEEE 14th International Conference on Information Reuse & Integration (IRI), 2013 Dynamic spectrum access (DSA), where the permission to use slices of radio spectrum is dynamically shifted (in time an in different geographical areas) across various communications services and applications, has been an area of interest from technical and public policy perspectives over the last decade. The underlying belief is that this will increase
Prashant Krishnamurthy +2 more
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A dynamic spectrum access scheme for cognitive radio networks [PDF]
, 2009 —In this paper, the dynamic spectrum access problem for cognitive radio (CR) networks is formulated as maximizing the sum channel capacity while satisfying the power budgets of individual secondary user radios as well as the SINR constraints on both the ...
Du, KL, Ni, Q, Swamy, MNS
core +7 more sources
, 2011 The increasing popularity and widespread deployment of wireless data systems fuel the increasing demand for more spectrum. On the other hand, various studies measuring spectrum utilization show that there is a huge variation in spectrum utilization at ...
Zander, Jens, +2 more
core +8 more sources
Spectrum utilization using game theory [PDF]
, 2010 This thesis was submitted for the degree of Master of Philosophy and awarded by Brunel University.Spectrum utilization is the most recent communications issue which takes great deal of attention from communication researchers where most of the efforts ...
Al-Banna, Zaineb
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IEEE Access, 2022 Spectrum occupancy modeling plays an important role in improving the performance of Cognitive Radio (CR) systems, because most of the methods to improve Dynamic Spectrum Access (DSA) performance need to make assumptions about the channel periods’ ...
Weiqin Li, Guoliang Shentu, Xiang Gao
doaj +1 more source
COGNITIVE RADIOS FOR DYNAMIC SPECTRUM ACCESS - Polyphase Multipath Radio Circuits for Dynamic Spectrum Access [PDF]
IEEE Communications Magazine, 2007 ABSTRACT Dynamic access of unused spectrum via a cognitive radio asks for flexible radio circuits that can work at an arbitrary radio frequency. This article reviews techniques to realize radios without resorting to frequency selective dedicated filters.
Eric A. M. Klumperink +4 more
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Misbehavior Scenarios in Cognitive Radio Networks
Future Internet, 2010 Recent advances in the fields of Cognitive Radio and the proliferation of open spectrum access promise that spectrum-agile wireless communication will be widespread in the near future, and will bring significant flexibility and potential utility ...
Hermann de Meer +7 more
doaj +1 more source
Statistical spectrum occupancy prediction for dynamic spectrum access: a classification
EURASIP Journal on Wireless Communications and Networking, 2018 ᅟ Spectrum scarcity due to inefficient utilisation has ignited a plethora of dynamic spectrum access solutions to accommodate the expanding demand for future wireless networks.
Hamid Eltom +4 more
doaj +1 more source
Application-aware dynamic spectrum access [PDF]
Wireless Networks, 2011 Dynamic Spectrum Access (DSA) allows unlicensed wireless devices to opportunistically access unoccupied licensed spectrum bands. DSA yields efficient spectrum utilization which can greatly improve wireless networking performance. In this paper, we advocate application-awareness to effectively manage the side-effects of DSA that can offset its benefits ...
Ashwini Kumar, Kang G. Shin
openaire +1 more source
Privacy-Preserving Crowd-Sensing for Dynamic Spectrum Access With Malicious Workers
IEEE Access, 2021 The rapid growth of IoT wireless devices has caused severe spectrum shortage. The Dynamic Spectrum Access (DSA) paradigm is extremely well-suited to alleviate such spectrum shortage.
Erald Troja +3 more
doaj +1 more source