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Average Throughput in AWGN Cognitive Fading Interference Channel with Multiple Secondary Pairs
KTH, School of Electrical Engineering (EES), Communication Theory. KTH, School of Electrical Engineering (EES), Centres, ACCESS Linnaeus Centre.
KTH, School of Electrical Engineering (EES), Communication Theory. KTH, School of Electrical Engineering (EES), Centres, ACCESS Linnaeus Centre.
KTH, School of Electrical Engineering (EES), Communication Theory. KTH, School of Electrical Engineering (EES), Centres, ACCESS Linnaeus Centre.ORCID iD: 0000-0001-7182-9543
KTH, School of Electrical Engineering (EES), Communication Theory. KTH, School of Electrical Engineering (EES), Centres, ACCESS Linnaeus Centre.ORCID iD: 0000-0002-7926-5081
2012 (English)In: Proceedings of the 2012 7th International ICST Conference on Cognitive Radio Oriented Wireless Networks and Communications, CROWNCOM 2012, IEEE Computer Society, 2012, 158-162 p.Conference paper, Published paper (Refereed)
Abstract [en]

We consider the additive white Gaussian noise (AWGN) cognitive fading interference channel consisting of one primary and multiple secondary transmitter-receiver pairs. The secondary transmitters have non-causal knowledge of the primary message. We find a tuple of achievable rates by utilizing the discrete superposition model (DSM), which is a simplified, deterministic channel model. The coding scheme devised for the DSM can be translated into a coding scheme for the AWGN model, where the rate achieved in the AWGN model is at most a constant gap below the rate achieved in the DSM. We then calculate the average throughput of the secondary pairs under the assumption of Rayleigh fading channels. The main result is that our scheme performs well in the weak interference regime. The sum-throughput increases with the number of secondary pairs.

Place, publisher, year, edition, pages
IEEE Computer Society, 2012. 158-162 p.
Keyword [en]
Radio Channels, Capacity
National Category
Telecommunications
Identifiers
URN: urn:nbn:se:kth:diva-93756DOI: 10.4108/icst.crowncom.2012.248335ISI: 000310377900028Scopus ID: 2-s2.0-84869408725ISBN: 978-1-936968-55-8 (print)OAI: oai:DiVA.org:kth-93756DiVA: diva2:523671
Conference
2012 7th International ICST Conference on Cognitive Radio Oriented Wireless Ntworks and Communications, CROWNCOM 2012;Stockholm; 18 June 2012 through 20 June 2012
Funder
EU, FP7, Seventh Framework Programme, 248303ICT - The Next Generation
Note

QC 20121214

Available from: 2013-02-11 Created: 2012-04-25 Last updated: 2013-04-15Bibliographically approved

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Schrammar, NicolasFarhadi, HamedRasmussen, Lars K.Skoglund, Mikael
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