Read e-book online Cognitive Radio Networks: From Theory to Practice PDF

By Ahmed Khattab

ISBN-10: 1461440327

ISBN-13: 9781461440321

ISBN-10: 1461440335

ISBN-13: 9781461440338

This booklet describes a verbal exchange paradigm which can form the way forward for instant conversation networks, Opportunistic Spectrum entry (OSA) in Cognitive Radio Networks (CRN). whereas a number of theoretical OSA ways were proposed, they're challenged via the sensible obstacles of cognitive radios: the most important permitting expertise of OSA. This booklet provides an exceptional formula of the OSA challenge in CNR that takes into consideration the sensible barriers encountered because of present applied sciences. in line with this type of challenge formula, this e-book provides a framework and protocol info imposing the analytically-optimized resolution of this challenge. in contrast to the cutting-edge of CRN implementations that sometimes aim software program outline radios which aren't appropriate for actual platforms, this ebook describes the implementation of disbursed OSA, utilizing functional radio transceiver applied sciences. It presents an intensive characterization of the earnings to be had to theoretical OSA ways if the sensible barriers are considered.

  • Tackles the cognitive radio networks functionality optimization challenge, taking into consideration the sensible obstacles of today’s technologies;
  • presents thorough functionality assessment in arbitrary, large-scale networks, in addition to microscopic, small-scale functionality review, utilizing reasonable implementation;
  • Presents an empirical examine of the earnings to be had over current thoughts by means of adopting sensible approaches;
  • Tackles the cognitive radio networks functionality optimization challenge, taking into consideration the sensible obstacles of today’s technologies;
  • offers thorough functionality review in arbitrary, large-scale networks, in addition to microscopic, small-scale functionality assessment, utilizing sensible implementation;
  • Presents an empirical learn of the earnings on hand over current concepts via adopting sensible approaches;

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Download e-book for kindle: Cognitive Radio Networks: From Theory to Practice by Ahmed Khattab

This e-book describes a conversation paradigm which could form the way forward for instant conversation networks, Opportunistic Spectrum entry (OSA) in Cognitive Radio Networks (CRN). whereas numerous theoretical OSA ways were proposed, they're challenged by way of the sensible boundaries of cognitive radios: the major allowing expertise of OSA.

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Examples include the Cognitive Radio Open Source System (CROSS) [30], the Papyrus software platform [31], and the Sora platform [32]. However, such SDR-based platforms have a major shortcoming in their response time due to the communication latency between the USRP and the general purpose processor (with the exception of Sora [32] which uses external hardware including dedicated Central Processing Unit (CPU) cores and large low-latency caches to address such a limitation). A comprehensive discussion of the shortcomings of SDR-based platforms is presented in [33].

5 standard started in August 2008 and the draft standard was published in the end of 2011. 6: Spectrum Sensing Interfaces and Data Structures for Dynamic Spectrum Access and other Advanced Radio Communication Systems. 6 work group is to define the interfaces and the data structures required to exchange sensing-related information in order to increase the interoperability between sensors and their clients developed by different manufacturers. The logical interface and supporting data structures are defined abstractly without constraining the sensing technology, client design, or data link between sensor and client.

Collecting the spectrum sensing information from multiple cognitive radio nodes minimizes the uncertainty about the spectral opportunities [12]. , it might necessitates the need for an overlay subnetwork that is only responsible for coordinating the cooperation process). 2 Opportunistic Spectrum Access and Sharing The spectrum access problem is to determine the resources to be used for an upcoming transmission. Such a resource allocation decision includes both the identity of the spectrum to be used alongside a transmission scheme to be used (defined in terms of the transmission power and the modulation rate) and the time instance such a spectrum is available.

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Cognitive Radio Networks: From Theory to Practice by Ahmed Khattab


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