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New approach to wireless channel modeling based on representing fields in the scattering medium as the sum of resonance oscillation fields

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Abstract

A new approach to channel modeling is proposed, in which the electromagnetic field in the scattering medium is regarded as the sum of resonance oscillation fields. Modeling starts with obtaining the scattering channel matrix that links amplitudes of spherical waves in receive-transmit regions. The scattering channel matrix provides a convenient model for MIMO communication systems, as it allows taking into account space and polarization characteristics of the fields. A method of transiting from the physical (field) to analytical (antenna) channel model is proposed, which enables taking into account multiple bounces off the antenna and surrounding objects that occur during propagation of waves. The use of the singularity expansion method (SEM) yielded accurate analytical expressions for the frequency dependence of entries of the scattering-channel matrix. The entries of the scattering-channel matrix are represented as the sum of two summands: the non-resonance summand accounting for single-bounce scattering and the resonance summand accounting for wave multiple-bounce scattering in the scattering medium. The impact of multiple-bounce scattering has been neglected in all models described earlier. A technique for building a discrete channel model for a frequency range is proposed. A set of parameters allowing the description of space-frequency characteristics of a simple-geometry wireless channel is presented. Statistical characteristics of random channel parameters are obtained, and the results of modeling such a channel are presented.

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Acknowledgments

The authors wish to thank Yuri B. Akimov, the technical writer of MFI Soft, for his valuable advice on the manuscript.

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Authors and Affiliations

  1. Nizhny Novgorod State University of Technology at R.E. Alexeyev, Nizhny Novgorod, Russia, 603095

    Igor P. Kovalyov & Natalya I. Kuzikova

  2. MERA NN, Nizhny Novgorod, Russia, 603126

    Igor P. Kovalyov & Dmitry M. Ponomarev

Authors
  1. Igor P. Kovalyov
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  2. Natalya I. Kuzikova
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  3. Dmitry M. Ponomarev
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Correspondence to Igor P. Kovalyov.

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Kovalyov, I.P., Kuzikova, N.I. & Ponomarev, D.M. New approach to wireless channel modeling based on representing fields in the scattering medium as the sum of resonance oscillation fields. Wireless Netw 22, 1779–1795 (2016). https://doi.org/10.1007/s11276-015-1062-5

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