Performance of Channel Estimation and Frequency-Domain Equalization for UAV Command and Control Links 


Vol. 42,  No. 7, pp. 1316-1324, Jul.  2017
10.7840/kics.2017.42.7.1316


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  Abstract

This paper presents a study of the channel estimation and equalization for the command and control data link between a moving UAV(Unmanned Aerial Vehicle) and ground control station. To do this, we introduce a air-ground channel model and apply a frequency domain equalization based on a single carrier. And we propose a method to interpolate channel response from data interval using estimated channel information in estimation interval to overcome the temporal variations of the channels that occur by high speed moving of the UAV. The simulation was conducted on air-ground multipath channel with Jake’s model to compare the error performance according to use of this method. We checked that changed channel is tracked when proposed method is used by comparing the estimated channel response and real channel in the frequency domain. Finally, we can know that he channel estimation and equalization method using the proposed method has a better BER(Bit Error Rate) than the case where the interpolation is not used from the uncoded BER perspective.

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  Cite this article

[IEEE Style]

C. Hwang, J. Kim, Y. Ryu, "Performance of Channel Estimation and Frequency-Domain Equalization for UAV Command and Control Links," The Journal of Korean Institute of Communications and Information Sciences, vol. 42, no. 7, pp. 1316-1324, 2017. DOI: 10.7840/kics.2017.42.7.1316.

[ACM Style]

Chan-Ho Hwang, Jaesin Kim, and Young-Jae Ryu. 2017. Performance of Channel Estimation and Frequency-Domain Equalization for UAV Command and Control Links. The Journal of Korean Institute of Communications and Information Sciences, 42, 7, (2017), 1316-1324. DOI: 10.7840/kics.2017.42.7.1316.

[KICS Style]

Chan-Ho Hwang, Jaesin Kim, Young-Jae Ryu, "Performance of Channel Estimation and Frequency-Domain Equalization for UAV Command and Control Links," The Journal of Korean Institute of Communications and Information Sciences, vol. 42, no. 7, pp. 1316-1324, 7. 2017. (https://doi.org/10.7840/kics.2017.42.7.1316)

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pISSN : 1226 - 4717
eISSN : 2287 - 3880