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Large-System Analysis of Correlated MIMO Multiple Access Channels with Arbitrary Signaling in the Presence of Interference
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
2014 (English)In: IEEE Transactions on Wireless Communications, ISSN 1536-1276, E-ISSN 1558-2248, Vol. 13, no 4, 2060-2073 p.Article in journal (Refereed) Published
Abstract [en]

Presence of multiple antennas on both sides of a communication channel promises significant improvements in system throughput and power efficiency. In effect, a new class of large multiple-input multiple-output (MIMO) communication systems has recently emerged and attracted both scientific and industrial attention. To analyze these systems in realistic scenarios one has to include such aspects as co-channel interference, multiple access and spatial correlation. In this paper, we study the properties of correlated MIMO multiple-access channels in the presence of external interference. Using the replica method from statistical physics, we derive the ergodic sum-rate of the communication for arbitrary signal constellations when the numbers of antennas at both ends of the channel grow large. Based on these asymptotic expressions, we also address the problem of sum-rate maximization using statistical channel state information and linear precoding. The numerical results demonstrate that when the interfering terminals use discrete constellations, the resulting interference becomes easier to handle compared to Gaussian signals. Thus, it may be possible to accommodate more interfering transmitter-receiver pairs within the same area as compared to the case of Gaussian signals. In addition, we demonstrate numerically for the Gaussian and QPSK signaling schemes that it is possible to design precoder matrices that significantly improve the achievable rates at low-to-mid range of signal-to-noise ratios when compared to isotropic precoding.

Place, publisher, year, edition, pages
2014. Vol. 13, no 4, 2060-2073 p.
Keyword [en]
MIMO systems, multiple access channel, large-system analysis, replica method, precoding, transceiver design
National Category
Telecommunications
Identifiers
URN: urn:nbn:se:kth:diva-134208DOI: 10.1109/TWC.2014.022614.130860ISI: 000335154100027Scopus ID: 2-s2.0-84899901305OAI: oai:DiVA.org:kth-134208DiVA: diva2:665363
Funder
Swedish Research Council, 621-2009-4666EU, FP7, Seventh Framework Programme, 228044
Note

QC 20140602. Updated from manuscript to article in journal.

Available from: 2013-11-19 Created: 2013-11-19 Last updated: 2017-12-06Bibliographically approved

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Rasmussen, Lars K.

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