Acoustic Communication Testbed for Downlink NOMA Transmission with Transceiver Hardware Impairments: System Design and Experimental Results 


Vol. 48,  No. 7, pp. 782-794, Jul.  2023
10.7840/kics.2023.48.7.782


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  Abstract

Acoustic communication has been widely used in short-range communication technologies, such as smartphones, due to its simplicity in using transmitting and receiving devices like speakers and microphones. In recent years, the number of terminals that need to perform communication has increased dramatically along with the increase in demand for acoustic communication systems in various fields. Against this background, when using Orthogonal Multiple Access (OMA) for multiple users, there is a fundamental limit to dividing and allocating resource, which leads to resource efficiency problems. To overcome this problems, extensive research have been conducted to apply Non-Orthogonal Multiple Access (NOMA), which provides high resource efficiency and low latency service to multiple users, to acoustic communication system. However, to the best of our knowledge, there is no prior work on testbed for NOMA-based acoustic communication systems. In this paper, we put forth NOMA-based acoustic communication system model and implement a resource efficient NOMA-based acoustic communication system by analyzing audible frequency noise and hardware impairments that occur in the testbed environment. Finally, we verify that the implemented technology performs better in terms of resource efficiency and reliability than the OMA-based acoustic communication system.

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[IEEE Style]

S. Kim, J. Seong, J. Park, H. Ham, W. Shin, "Acoustic Communication Testbed for Downlink NOMA Transmission with Transceiver Hardware Impairments: System Design and Experimental Results," The Journal of Korean Institute of Communications and Information Sciences, vol. 48, no. 7, pp. 782-794, 2023. DOI: 10.7840/kics.2023.48.7.782.

[ACM Style]

Seonmin Kim, Jaehyup Seong, Juha Park, Hyeongbeen Ham, and Wonjae Shin. 2023. Acoustic Communication Testbed for Downlink NOMA Transmission with Transceiver Hardware Impairments: System Design and Experimental Results. The Journal of Korean Institute of Communications and Information Sciences, 48, 7, (2023), 782-794. DOI: 10.7840/kics.2023.48.7.782.

[KICS Style]

Seonmin Kim, Jaehyup Seong, Juha Park, Hyeongbeen Ham, Wonjae Shin, "Acoustic Communication Testbed for Downlink NOMA Transmission with Transceiver Hardware Impairments: System Design and Experimental Results," The Journal of Korean Institute of Communications and Information Sciences, vol. 48, no. 7, pp. 782-794, 7. 2023. (https://doi.org/10.7840/kics.2023.48.7.782)
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pISSN : 1226 - 4717
eISSN : 2287 - 3880