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Interference mitigation techniques for clustered multicell joint decoding systems
KTH, School of Electrical Engineering (EES), Signal Processing. KTH, School of Electrical Engineering (EES), Centres, ACCESS Linnaeus Centre. (Signal Processing)ORCID iD: 0000-0003-2298-6774
2011 (English)In: EURASIP Journal on Wireless Communications and Networking, ISSN 1687-1472, E-ISSN 1687-1499, Vol. 132, no 1Article in journal (Refereed) Published
Abstract [en]

Multicell joint processing has originated from information-theoretic principles as a means of reaching the fundamental capacity limits of cellular networks. However, global multicell joint decoding is highly complex and in practice clusters of cooperating Base Stations constitute a more realistic scenario. In this direction, the mitigation of intercluster interference rises as a critical factor towards achieving the promised throughput gains. In this paper, two intercluster interference mitigation techniques are investigated and compared, namely interference alignment and resource division multiple access. The cases of global multicell joint processing and cochannel interference allowance are also considered as an upper and lower bound to the interference alignment scheme, respectively. Each case is modelled and analyzed using the per-cell ergodic sum-rate throughput as a figure of merit. In this process, the asymptotic eigenvalue distribution of the channel covariance matrices is analytically derived based on free-probabilistic arguments in order to quantify the sum-rate throughput. Using numerical results, it is established that resource division multiple access is preferable for dense cellular systems, while cochannel interference allowance is advantageous for highly sparse cellular systems. Interference alignment provides superior performance for average to sparse cellular systems on the expense of higher complexity.

Place, publisher, year, edition, pages
Springer, 2011. Vol. 132, no 1
National Category
Signal Processing
Identifiers
URN: urn:nbn:se:kth:diva-90966DOI: 10.1186/1687-1499-2011-132ISI: 000301103200001Scopus ID: 2-s2.0-84964292299OAI: oai:DiVA.org:kth-90966DiVA: diva2:507598
Note
QC 20120329Available from: 2012-03-05 Created: 2012-03-05 Last updated: 2017-12-07Bibliographically approved

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Ottersten, Björn

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CiteExportLink to record
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  • apa
  • harvard1
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  • vancouver
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  • de-DE
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  • nn-NO
  • nn-NB
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  • Other locale
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Output format
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