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Electronics and Telecommunications Research Institute (한국전자통신연구원)
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Measurement-Based Stochastic Cross-Correlation Models of a Multilink Channel in Cooperative Communication Environments

  • Park, Jae-Joon (Advanced Communications Research Laboratory, ETRI) ;
  • Kim, Myung-Don (Advanced Communications Research Laboratory, ETRI) ;
  • Kwon, Heon-Kook (Advanced Communications Research Laboratory, ETRI) ;
  • Chung, Hyun Kyu (Advanced Communications Research Laboratory, ETRI) ;
  • Yin, Xuefeng (College of Electronics and Information Engineering, Tongji University) ;
  • Fu, Yaoyao (College of Electronics and Information Engineering, Tongji University)
  • Received : 2012.04.27
  • Accepted : 2012.10.01
  • Published : 2012.12.31
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Abstract

In this paper, stochastic models for the cross-correlation of multiple channels are established based on measurement data collected using a wideband multiple-input multiple-output relay Band Exploration and Channel Sounder system at 3.7 GHz. We propose models for the cross-correlation characteristics of large-scale parameters (LSPs) between two links, that is, the base station and mobile station (MS) link and the relay station and MS link. The LSPs include shadow fading, Rician K-factor, delay spread, angle spread of arrival, and angle spread of departure. Furthermore, models are established for the cross-correlation of the small-scale fading in the impulse responses of two links. The statistics of these model parameters are investigated as functions of geometrical features of the multilink. They are extracted from a large amount of cross-correlation observations, which are obtained in three measurement sites along more than one hundred measurement routes. These models can be used together with the standard single-link channel models for the generation of correlated components, for example, path clusters, in two separate channels.

Keywords

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