• Title, Summary, Keyword: multilink channel

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Measurement-Based Stochastic Cross-Correlation Models of a Multilink Channel in Cooperative Communication Environments

  • Park, Jae-Joon;Kim, Myung-Don;Kwon, Heon-Kook;Chung, Hyun Kyu;Yin, Xuefeng;Fu, Yaoyao
    • ETRI Journal
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    • v.34 no.6
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    • pp.858-868
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    • 2012
  • 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.