УДК: 535.3

Multipath propagation channel modeling and capacity analysis for terahertz indoor communications

Publication in Journal of Optical Technology

For Russian citation (Opticheskii Zhurnal):

C. Liu, C. Wang, J.C. Cao Multipath propagation channel modeling and capacity analysis for terahertz indoor communications (Многопутевая модель распространения и анализ пропускной способности терагерцового канала связи внутри помещений) [на англ. яз.] // Оптический журнал. 2017. Т. 84. № 1. С. 74–84.

C. Liu, C. Wang, J.C. Cao Multipath propagation channel modeling and capacity analysis for terahertz indoor communications (Многопутевая модель распространения и анализ пропускной способности терагерцового канала связи внутри помещений) [in English] // Opticheskii Zhurnal. 2017. V. 84. № 1. P. 74–84.

For citation (Journal of Optical Technology):

C. Liu, C. Wang, and J. C. Cao, "Multipath propagation channel modeling and capacity analysis for terahertz indoor communications," Journal of Optical Technology. 84(1), 53-61 (2017). https://doi.org/10.1364/JOT.84.000053

Abstract:

The eventual practical deployment of a terahertz indoor communication system for ultra-high-speed wireless links requires a unified and proper channel model. By considering the peculiarity of terahertz radiation, we develop a deterministic multipath propagation channel model based on Kirchhoff scattering theory and ray tracing techniques, which incorporates the propagation models for the line-of-sight, reflected and scattered paths. This work also provides a novel evaluation methodology to quantify the proposed channel model for system performance investigation. Numerical simulations are carried out with experimental measurements. The results demonstrate the validity of the proposed model and reveal the importance of the non-line-of-sight propagation paths, especially the scattered rays. Spatial characteristics of the terahertz propagation have also been fully investigated for the diversity antenna steering and beamforming schemes. Finally, channel capacity and delay spread effects are evaluated and analyzed in detail, and huge potential on ultra-high-speed wireless communications over 20 Gbps has been demonstrated in the terahertz band for indoor scenarios.

Keywords:

multipath propagation, terahertz communications, ray tracing, Kirchhoff scattering theory, channel capacity

Acknowledgements:

This work was supported by the National Key Basic Research Program of China (Grant No. 2014CB339803), the National Natural Science Foundation of China (Grant Nos. 61131006, 61321492, 61204135), the Major National Development Project of Scientific Instrument and Equipment (Grant No. 2011YQ150021), the National Science and Technology Major Project (Grant No. 2011ZX02707), the Major Project (Grant No. YYYJ-1123-1) and the International Collaboration and Innovation Program on High Mobility Materials Engineering of the Chinese Academy of Sciences, and the Shanghai Municipal Commission of Science and Technology (Grant Nos. 14530711300).

OCIS codes: 080.1510, 290.5880, 060.4510

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