Pilot Coordination for Large-Scale Multi-Cell TDD Systems
Conference: WSA 2014 - 18th International ITG Workshop on Smart Antennas
03/12/2014 - 03/13/2014 at Erlangen, Germany
Proceedings: WSA 2014
Pages: 6Language: englishTyp: PDF
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Authors:
Neumann, David; Gruendinger, Andreas; Joham, Michael; Utschick, Wolfgang (Associate Institute for Signal Processing, Technische Universitaet Muenchen, 80290 Munich, Germany)
Abstract:
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.