Reservation-based Spectrum Load Smoothing as Cognitive Medium Access for Spectrum Sharing Wireless Networks
Authors: Berlemann, Lars and Hiertz, Guido R. and Walke, Bernard
Department of Communication Networks (ComNets), Faculty 6, RWTH Aachen University
: Lars Berlemann
In Proceedings of European Wireless Conference 2005, Vol. 2, p.p. 547-553, Nicosia, Cyprus, 2005.
Publication Date: Apr, 2005
On page(s):547-553
ISBN: 3-8007-2886-9
Abstract This paper focuses on mitigating the coexistence problem of spectrum sharing, quality of service supporting wireless networks. The application of waterfilling from the information theory on the medium access of resource sharing wireless networks enables a decentralized mutual coordination and is in the following referred to as Spectrum Load Smoothing (SLS). In using SLS, the competing wireless networks aim at an equal overall smoothed utilization of the spectrum. Based on observing past usage of the spectrum or/and reservations, the wireless networks identify unused radio resources and use these opportunities for communication. In this way, the SLS is an approach to a spectrum agile radio that operates in spectrum originally licensed to other (incumbent, primary) radio devices: The SLS implies a search for unused spectrum, interference avoidance under coexistence in utilization of this spectrum, and a release if it is used again. SLS using radios interact and redistribute their allocations of the spectrum under consideration of their individual quality of service requirements. In this way, the SLS enables a decentralized coordination and allows an optimal usage of the frequency spectrum. In summary, the SLS realized a cognitive medium access. This paper introduces the application of SLS in the time domain at the example of a decentralized coordination of coexisting, quality of service supporting, IEEE 802.11e wireless networks.
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@INPROCEEDINGS{BeHiWa_EW05,
AUTHOR = {Berlemann, L. and Hiertz, G. and Walke, B.},
TITLE = {Reservation-based Spectrum Load Smoothing as Cognitive Medium Access for
Spectrum Sharing Wireless Networks},
YEAR = {2005},
MONTH = {Apr},
VOLUME = {2},
PAGES = {547-553},
ADDRESS = {Nicosia, Cyprus},
BOOKTITLE = {Proceedings of European Wireless Conference 2005},
AFFILIATION = {Department of Communication Networks (ComNets), Faculty 6, RWTH Aachen University},
ISBN = {3-8007-2886-9},
ANNOTE = {Coexistence in Shared Spectrum, Cognitive Medium Access, Distributed
Quality of Service Support, IEEE 802.11e},
URL = {https://www.comnets.rwth-aachen.de}
}
Signature in CN-Library = {GG113, QK17}