Analysis of the Pilot Contamination Effect in Very Large Multicell Multiuser MIMO Systems for Physical Channel Models
2011 (English)In: Proceedings of the IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), IEEE conference proceedings, 2011, 3464-3467 p.Conference paper (Refereed)
We consider multicell multiuser MIMO systems with a very large numberof antennas at the base station. We assume that the channel is estimated by using uplink training sequences, and we consider a physical channel model where the angular domain is separated into a finite number of directions. We analyze the so-called pilot contamination effect discovered in previous work, and show that this effect persists under the finite-dimensional channel model that we consider. We further derive closed-form bounds on the achievable rate of uplink data transmission with maximum-ratio combining, for a finite and an infinite number of base station antennas.
Place, publisher, year, edition, pages
IEEE conference proceedings, 2011. 3464-3467 p.
, IEEE International Conference on Acoustics, Speech and Signal Processing, ISSN 1520-6149
Pilot contamination, very large MIMO systems
National CategoryEngineering and Technology
IdentifiersURN: urn:nbn:se:liu:diva-64416DOI: 10.1109/ICASSP.2011.5947131ISI: 000296062403219ISBN: 978-1-4577-0537-3OAI: oai:DiVA.org:liu-64416DiVA: diva2:390510