Design and Performance Evaluation of SSD (Simultaneous Single Band Duplex) System with HPA Nonlinearity 


Vol. 40,  No. 1, pp. 23-31, Jan.  2015


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  Abstract

In this paper, we design a SSD(simultaneous single band duplex) system using RF cancellation and digital cancellation. And then, we analyze performance of the SSD system using pre-distorter with HPA non-linearity. Also, we analyze digital cancellation performance of the SSD system using pre-distorter with HPA non-linearity. Additionally, digital cancellation cancels residual self-interference. In linear conditions, digital cancellation can cancel self-interference of 40dB. Therefore, the SSD system has good BER performance because most of self-interference is canceled. But, in HPA non-linearity conditions, digital cancellation cancels residual self-interference of 25dB. In this conditions, self-interference is greater than desired signal. Therefore, bit informations of distant station can not be received. But, we confirm that if the proposed system uses pre-distorter then bit information of distant station can be received by HPA non-linearity compensation. Also, we confirm that even though the proposed system uses pre-distorter, if HPA non-linearity increases then digital cancellation performance is degraded by imperfect compensation of HPA non-linerity.

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  Cite this article

[IEEE Style]

H. Keum, C. An, H. Ryu, "Design and Performance Evaluation of SSD (Simultaneous Single Band Duplex) System with HPA Nonlinearity," The Journal of Korean Institute of Communications and Information Sciences, vol. 40, no. 1, pp. 23-31, 2015. DOI: .

[ACM Style]

Hong-Sik Keum, Changyoung An, and Heung-Gyoon Ryu. 2015. Design and Performance Evaluation of SSD (Simultaneous Single Band Duplex) System with HPA Nonlinearity. The Journal of Korean Institute of Communications and Information Sciences, 40, 1, (2015), 23-31. DOI: .

[KICS Style]

Hong-Sik Keum, Changyoung An, Heung-Gyoon Ryu, "Design and Performance Evaluation of SSD (Simultaneous Single Band Duplex) System with HPA Nonlinearity," The Journal of Korean Institute of Communications and Information Sciences, vol. 40, no. 1, pp. 23-31, 1. 2015.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880