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Approximating the Capacity of Wireless Multiple Unicast Networks by Discrete Superposition Model
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: 0000-0002-7926-5081
2012 (English)In: Signals, Systems and Computers (ASILOMAR), 2012 Conference Record of the Forty Sixth Asilomar Conference on, IEEE Computer Society, 2012, 1913-1917 p.Conference paper, Published paper (Refereed)
Abstract [en]

The discrete superposition model (DSM) is intended to approximate the capacity region of AWGN networks. Finding the capacity region in the DSM is simpler due to its discrete and deterministic properties. For unicast in relay networks and for the multi-user interference channel it has been shown that the capacity regions of the DSM and of the AWGN model are within a constant gap. We extend this result to multiple unicast in networks consisting of broadcast and multiple-access channels by using a recent result on polymatroidal networks. We show that the capacity regions of the two models are within a constant additive gap and a constant multiplicative gap.

Place, publisher, year, edition, pages
IEEE Computer Society, 2012. 1913-1917 p.
Series
Asilomar Conference on Signals, Systems and Computers. Conference Record, ISSN 1058-6393
Keyword [en]
Capacity regions, In networks, Multi-user interference, Multiple access channels, Relay network, Superposition model, Unicast
National Category
Telecommunications
Identifiers
URN: urn:nbn:se:kth:diva-99192DOI: 10.1109/ACSSC.2012.6489371ISI: 000320768400355Scopus ID: 2-s2.0-84876239270ISBN: 978-1-4673-5051-8 (print)OAI: oai:DiVA.org:kth-99192DiVA: diva2:541472
Conference
46th Asilomar Conference on Signals, Systems and Computers, Asilomar 2012. Pacific Grove, CA. 4 November 2010 - 7 November 2012
Funder
Swedish Research CouncilICT - The Next Generation
Note

QC 20130115

Available from: 2013-02-08 Created: 2012-07-18 Last updated: 2013-08-07Bibliographically approved

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fulltext(131 kB)156 downloads
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Skoglund, Mikael

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Citation style
  • apa
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Language
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