Pilot Coordination for Large-Scale Multi-Cell TDD Systems

Konferenz: WSA 2014 - 18th International ITG Workshop on Smart Antennas
12.03.2014 - 13.03.2014 in Erlangen, Germany

Tagungsband: WSA 2014

Seiten: 6Sprache: EnglischTyp: PDF

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Neumann, David; Gruendinger, Andreas; Joham, Michael; Utschick, Wolfgang (Associate Institute for Signal Processing, Technische Universitaet Muenchen, 80290 Munich, Germany)

Pilot contamination limits the performance of a multi-cell time division duplex system with a large number of base station antennas. We study the potential benefit of coordination during the training phase and we propose efficient algorithms for practical systems. Our derivations are based on results from asymptotic analysis and the practical relevance is demonstrated by simulations with realistic system parameters.