Policy-based Spectrum Navigation of Cognitive Radios in Open Spectrum

Authors
Berlemann, Lars and Mangold, Stefan
Department of Communication Networks (ComNets), Faculty 6, RWTH Aachen University Kontakt: Lars Berlemann

In 14th Meeting of the Wireless World Research Forum, p. 7, San Diego CA, USA, 2005.
Publication Date: Jul, 2005
On page(s):7
ISBN:

Abstract
Regulation of spectrum will undergo changes in the future. On the one hand, wireless communication significantly demands additional spectrum. On the other hand, many frequency bands are often under-utilized, because of inefficient spectrum allocations. Intelligent radios, so called cognitive radios, realize the dynamic usage of frequency bands on an opportunistic basis, by identifying and using the under-utilized spectrum. Such spectrum is therefore referred to as spectrum opportunity. Such a flexible spectrum usage requires regulation to realize the vision of an open spectrum. Policies which determine when spectrum is considered as opportunity and which define the possibilities of using these spectrum opportunities are to be specified. This paper introduces two approaches of different complexity that enable distributed QoS support in open spectrum. These algorithms are specified as policies in a machine understandable policy description language. This enables a reasoning, i.e., decision taking, of the cognitive radio about spectrum usage. Thereby not only a multitude of policies has to be combined but also measurements of local spectrum utilization and user/operator preferences are to be taken into account. Thus, the cognitive radio navigates through the dynamic varying opportunities of unused spectrum.

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Bibtex

@CONFERENCE{BeMa_WWRF14,
  AUTHOR          = {Berlemann, L. and Mangold, S.},
  TITLE           = {Policy-based Spectrum Navigation of Cognitive Radios in Open Spectrum},
  JOURNAL         = {14th Meeting of the Wireless World Research Forum},
  YEAR            = {2005},
  MONTH           = {Jul},
  PAGES           = {7},
  ADDRESS         = {San Diego CA, USA},
  AFFILIATION     = {Department of Communication Networks (ComNets), Faculty 6, RWTH Aachen University},
  ANNOTE          = {Cognitive Radio, Open Spectrum, Policy Description Language, Spectrum
                    Navigation},
  URL             = {http://www.comnets.rwth-aachen.de} 
}

Signature in CN-Library = {QK015 (2005)}

Letzte Änderung: 17.09.2008 11.46