Results 121 to 130 of about 15,831,729 (172)

Four years on: following the pathway to real world impact of engineering research. [PDF]

open access: yesCommun Eng
Polese M   +6 more
europepmc   +1 more source

A Survey of Dynamic Spectrum Access

IEEE Signal Processing Magazine, 2007
Compounding the confusion is the use of the broad term cognitive radio as a synonym for dynamic spectrum access. As an initial attempt at unifying the terminology, the taxonomy of dynamic spectrum access is provided. In this article, an overview of challenges and recent developments in both technological and regulatory aspects of opportunistic spectrum
Brian M Sadler, B M Sadler
exaly   +3 more sources

Dynamic spectrum access in open spectrum wireless networks

IEEE Journal on Selected Areas in Communications, 2006
One of the reasons for the limitation of bandwidth in current generation wireless networks is the spectrum policy of the Federal Communications Commission (FCC). But, with the spectrum policy reform, open spectrum wireless networks, and spectrum agile radios are set to drive next general wireless networks.
Rajarathnam Chandramouli   +2 more
exaly   +2 more sources

COGNITIVE RADIOS FOR DYNAMIC SPECTRUM ACCESS - The Path to Market Success for Dynamic Spectrum Access Technology

IEEE Communications Magazine, 2007
Rapid progress is being made in the technology for dynamic spectrum access (DSA) radio systems. However, the structure and dynamics of the wireless services market must also evolve for DSA to succeed. This article examines the interlinked technical and economic issues associated with markets for DSA-based wireless services. We use this analysis to make
William Lehr
exaly   +3 more sources

Asynchronous Dynamic Spectrum Access

IEEE Transactions on Vehicular Technology, 2012
Synchronization among primary users (PUs) and secondary users (SUs) is either explicitly or implicitly assumed in the literature to allow reliable dynamic spectrum access (DSA) and cognitive radio (CR) networking. However, in realistic DSA that supports ad-hoc transmissions, perfect synchronization is not attainable in the absence of a centralized ...
Yu-Yu Lin, Kwang-Cheng Chen
openaire   +1 more source

Dynamic spectrum access as a service

2012 Proceedings IEEE INFOCOM, 2012
Recently there have been various studies on dynamic spectrum access (DSA) approaches, e.g., opportunistic spectrum access and spectrum auction, to address spectrum scarcity and inefficient spectrum utilization caused by today's static spectrum allocation policy.
Chunsheng Xin, Min Song 0002
openaire   +2 more sources

Characterizing spectrum goodness for dynamic spectrum access

2012 50th Annual Allerton Conference on Communication, Control, and Computing (Allerton), 2012
The combination of exclusive use spectrum licensing and growing demand for voice, data, and video applications is leading to artificial spectrum scarcity. A recent approach to alleviate this artificial spectrum scarcity innovatively uses unused TV spectrum, also called the TV white spaces, through dynamic spectrum access (DSA) techniques.
Aakanksha Chowdhery   +3 more
openaire   +1 more source

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