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Channel Capacities for Different Antenna Arrays with Various Transmitting Angles in Tunnels

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Abstract

This paper focuses on the research of channel capacity of multiple-input multiple-output (MIMO) system with different transmitting angles in straight and curvy tunnels. A ray-tracing technique is developed to calculate channel frequency responses for tunnels, and the channel frequency response is further used to calculate corresponding channel capacity. The channel capacities are calculated based on the realistic environment. The channel capacities of MIMO long term evolution system using spatial and polar antenna arrays by different transmitting angles are computed. Numerical results show that, The channel capacity for transmitting angle at 15\(^\circ \) is largest compared to the other angles in the tunnels. Moreover, the channel capacity of polar array is better than that of spatial array both in the straight and curvy tunnels. Besides, the channel capacity for the tunnels with traffic is larger than that without traffic. Finally, it is worth noting that in these cases the present work provides not only comparative information but also quantitative information on the performance reduction.

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  1. Department of Electrical Engineering, Tamkang University, Tamsui, Taiwan, ROC

    Chien-Ching Chiu & Su-Ei Wu

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  1. Chien-Ching Chiu
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  2. Su-Ei Wu
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Correspondence to Chien-Ching Chiu.

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Chiu, CC., Wu, SE. Channel Capacities for Different Antenna Arrays with Various Transmitting Angles in Tunnels. Wireless Pers Commun 79, 941–951 (2014). https://doi.org/10.1007/s11277-014-1896-7

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  • DOI: https://doi.org/10.1007/s11277-014-1896-7

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