Seminar Ausgewählte Kapitel der Nachrichtentechnik

Large-Scale MIMO Systems

Seminar “Special Topics in Communications”
Winter Term 2013/14

With the increasing demand for higher data rates, multiple-input multiple-output (MIMO) systems have attracted much attention over the last decade. Today, MIMO technology is a key element of many modern wireless communication standards including LTE and WiMAX. An emerging research area in MIMO communications are so-called massive MIMO or large-scale MIMO systems, where in contrast to conventional MIMO systems, which have up to about ten antennas at the base station, base stations are equipped with much larger numbers of antennas, e.g., one hundred or more. It has been shown that in a large-scale MIMO system, the thermal noise, intra-cell, and inter-cell interference vanish and the only remaining disturbing effect is the so-called pilot contamination which is the corruption of the channel estimate due to the reuse of the same pilot sequences in adjacent cells. Moreover, in the uplink of a large-scale MIMO system, if the channel state information (CSI) is perfectly known at the base station, the transmit power of the users  can be reduced by a factor proportional to the number of base station antennas. These considerations, the very high achievable spectral efficiency, and many other features render large-scale MIMO systems a promising technology for application in future communication systems.  Participants in this seminar will acquire knowledge about the potentials and challenges of massive MIMO systems. Topics to be covered include:

  • Fundamentals of MIMO Communication Systems
  • Fundamentals of Large-Scale MIMO Systems
  • Uplink/Downlink Duality in MIMO Communication Systems
  • Random Matrix Theory with Application to Large-Scale MIMO Systems
  • Linear Precoding Schemes
  • Linear Detection Techniques
  • Pilot Contamination
  • Blind Pilot Decontamination
  • Channel Estimation in Large-Scale MIMO Systems
  • Constant-Envelope Multi-User Signalling for Large-Scale MIMO Systems
  • Phase Noise and its Influence on the Performance of Large-Scale MIMO Systems

Taking part in the course requires knowledge on subjects that are for instance covered in the lectures Digital Communications and Fundamentals of Mobile Communications. It is planned to conduct the seminar as a block seminar with 3-4 dates on Friday afternoon.

Shahram Zarei, Cauerstr. 7, Room E1.28, zarei(at), or via StudOn:

Registration Deadline: Tuesday, October 15, 2013, maximum number of participants: 12
Briefing: Wednesday, October 16, 2013, 08:30 a.m., Room E1.10