Journal ArticleDOI
Cognitive radio for flexible mobile multimedia communications
Joseph Mitola,Joseph Mitola +1 more
TLDR
This paper characterizes the potential contributions of cognitive radio to spectrum pooling and outlines an initial framework for formal radio-etiquette protocols.Abstract:
Wireless multimedia applications require significant bandwidth, some of which will be provided by third-generation (3G) services. even with substantial investment in 3G infrastructure, the radio spectrum allocated to 3G will be limited. Cognitive radio offers a mechanism for the flexible pooling of radio spectrum using a new class of protocols called formal radio etiquettes. This approach could expand the bandwidth available for conventional uses (e.g., police, fire and rescue) and extend the spatial coverage of 3G in a novel way. Cognitive radio is a particular extension of software radio that employs model-based reasoning about users, multimedia content, and communications context. This paper characterizes the potential contributions of cognitive radio to spectrum pooling and outlines an initial framework for formal radio-etiquette protocols.read more
Citations
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Journal ArticleDOI
A Survey of Dynamic Spectrum Access
Qing Zhao,Brian M. Sadler +1 more
TL;DR: An overview of challenges and recent developments in both technological and regulatory aspects of opportunistic spectrum access (OSA) is presented, and the three basic components of OSA are discussed.
Journal ArticleDOI
Principles of Physical Layer Security in Multiuser Wireless Networks: A Survey
TL;DR: A comprehensive review of the domain of physical layer security in multiuser wireless networks, with an overview of the foundations dating back to the pioneering work of Shannon and Wyner on information-theoretic security and observations on potential research directions in this area.
Journal ArticleDOI
Achievable rates in cognitive radio channels
TL;DR: An achievable region which combines Gel'fand-Pinkser coding with an achievable region construction for the interference channel is developed, which resembles dirty-paper coding, a technique used in the computation of the capacity of the Gaussian multiple-input multiple-output (MIMO) broadcast channel.
Journal ArticleDOI
Structured Compressed Sensing: From Theory to Applications
Marco F. Duarte,Yonina C. Eldar +1 more
TL;DR: The prime focus is bridging theory and practice, to pinpoint the potential of structured CS strategies to emerge from the math to the hardware in compressive sensing.
Proceedings ArticleDOI
Mutual interference in OFDM-based spectrum pooling systems
TL;DR: A quantitative comparison of both approaches to spectrum pooling aims at enabling public access to these spectral ranges without sacrificing the transmission quality of the actual license owners, and it is obvious that both approaches sacrifice bandwidth of the rental system.
References
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Journal ArticleDOI
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Journal ArticleDOI
Radio resource management in future wireless networks: requirements and limitations
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