On the Asymptotic Sum-Rate of Uplink MIMO Cellular Systems in the Presence of Non-Gaussian Inter-Cell Interference
2012 (English)In: 2012 IEEE Global Communications Conference (GLOBECOM 2012), New York: IEEE , 2012, 2475-2480 p.Conference paper (Refereed)
In this paper we consider a scenario, where several mobile multi-antenna terminals communicate with the multi- antenna base station within a cellular communication system over the flat Rayleigh fading channel. In addition, several terminals from the neighboring cell cause interference. For such a scenario, we derive, using the replica method, the asymptotic sum-rate of the communication in the large-system limit for arbitrary signal constellations. Moreover, we show via numerical results that when the interfering terminals use a QPSK constellation, the resulting interference becomes easier to handle. In effect, we may be able to accumulate more interfering transmitter-receiver pairs within the same area as compared to the case of Gaussian signals. Monte- Carlo simulations show that the derived asymptotic expression matches well with the simulated values even for small numbers of antennas.
Place, publisher, year, edition, pages
New York: IEEE , 2012. 2475-2480 p.
, IEEE Global Telecommunications Conference (Globecom), ISSN 1930-529X
Arbitrary signals, Asymptotic expressions, Flat Rayleigh fading, Gaussian signals, Intercell interference, MIMO cellular systems, Monte-Carlo simulations, Numerical results
IdentifiersURN: urn:nbn:se:kth:diva-109508DOI: 10.1109/GLOCOM.2012.6503488ISI: 000322375102138ScopusID: 2-s2.0-84877643176ISBN: 978-146730921-9OAI: oai:DiVA.org:kth-109508DiVA: diva2:582930
2012 IEEE Global Communications Conference, GLOBECOM 2012; Anaheim, CA; United States; 3 December 2012 through 7 December 2012
FunderSwedish Research CouncilICT - The Next Generation
QC 201301082013-01-072013-01-072013-11-28Bibliographically approved