NDLI: Influence of primary network structure and dynamics on achievable performance of cognitive wireless networks

Content Provider	IEEE Xplore Digital Library
Author	Riihijarvi, J. Nasreddine, J. Mahonen, P.
Copyright Year	2011
Description	Author affiliation: Institute for Networked Systems, RWTH Aachen University, Kackertstrasse 9, D-52072 Aachen, Germany (Riihijarvi, J.; Nasreddine, J.; Mahonen, P.)
Abstract	We study the influence of the structure and dynamics of the primary network on occurrence and quality of transmit opportunities of the secondary network. In order to obtain accurate results, we develop a framework for performance evaluation that allows detailed modeling of the networks involved, while still enabling general conclusions to be drawn. The approach and results are applicable to diverse application scenarios, such as use of dynamic spectrum access techniques for femtocell deployments within operator networks. The techniques presented here can also be applied beyond dynamic spectrum access based networks for studying the performance of more general heterogeneous wireless systems as well. We use a combination of actual node location data sets and carefully selected node location models in order to obtain reliable results, while still allowing general conclusions to be made. The results show that even in dense primary networks significant opportunities for secondary use can arise. These originate either from the temporal dynamics of the primary, or in spatial domain from frequency reuse, provided that the primary network is active at most 30–50% of the time. For higher activity levels there are almost no useful spectrum opportunities even if the primary network is rather sparsely deployed. The results also show that the spatial structure of the deployment of the secondary network has significant influence on the capacity that can be achieved by using the arising spectrum opportunities.
Starting Page	359
Ending Page	370
File Size	2550152
Page Count	12
File Format	PDF
ISBN	9781457701771
e-ISBN	9781457701788
e-ISBN	9781457701764
DOI	10.1109/DYSPAN.2011.5936225
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-05-03
Publisher Place	Germany
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Base stations Computational modeling Radio transmitters Interference Data models Approximation methods
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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