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Massive MIMO Channel Modeling - Extension of the COST 2100 Model

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Author

Summary, in English

As massive MIMO is currently considered a leading 5G technology candidate, channel models that capture important massive MIMO channel characteristics are urgently needed. In this paper we present an attempt for massive MIMO channel modeling based on measurement campaigns at 2.6 GHz in both outdoor and indoor environments, using physically-large arrays and with closely-spaced users. The COST 2100 MIMO channel model is adopted as a general framework. We discuss modeling approaches and scopes for massive MIMO, based on which we suggest extensions to the COST 2100 model. The extensions include 3D propagation, polarization, cluster behavior at the base station side for physically-large arrays, and multi-path component gain functions for closely-spaced users. Model parameters for these extensions in massive

MIMO scenarios are reported. Initial validation against the measurements are also performed, which shows that the model is capable of reproducing the channel statistics in terms of temporal behavior of the user separability,

singular value spread and sum-rate/capacity.

Publishing year

2015

Language

English

Document type

Conference paper

Topic

  • Communication Systems
  • Telecommunications

Keywords

  • Massive MIMO
  • channel modeling
  • COST 2100 MIMO channel model
  • channel measurements
  • 5G

Conference name

Joint NEWCOM/COST Workshop on Wireless Communications (JNCW)

Conference date

2015-10-14 - 2015-10-15

Conference place

Barcelona, Spain

Status

Published

Research group

  • Radio Systems