A Study of NOMA-TFIM for Improving Channel Capacity 


Vol. 46,  No. 7, pp. 1138-1145, Jul.  2021
10.7840/kics.2021.46.7.1138


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  Abstract

Non-orthogonal Multiple Access (NOMA) is different from the conventional Orthogonal Multiple Access (OMA) technique, by simultaneously transmitting user signals through different power allocations according to channel gain. It is a technique that improves capacity. Unlike the NOMA method, Index Modulation (IM) increases frequency efficiency by using resources such as antenna information, subcarriers, and time slots. In this paper, we propose a new technique that combines Time-Frequency Index Modulation (TFIM) with NOMA among NOMA-IM techniques that combine NOMA and IM to improve channel capacity. In this paper, theoretical analysis and simulation of the channel capacity of NOMA-TFIM are conducted that compares with existing OMA, NOMA, NOMA-TIM (Time Index Modulation), and NOMA-FIM (Frequency Index Modulation). It demonstrates the performance gain of NOMA-TFIM.

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  Cite this article

[IEEE Style]

J. O. Kim, D. K. Hendraningrat, B. Narottama, S. Y. Shin, "A Study of NOMA-TFIM for Improving Channel Capacity," The Journal of Korean Institute of Communications and Information Sciences, vol. 46, no. 7, pp. 1138-1145, 2021. DOI: 10.7840/kics.2021.46.7.1138.

[ACM Style]

Jae Oh Kim, Denny Kusuma Hendraningrat, Bhaskara Narottama, and Soo Young Shin. 2021. A Study of NOMA-TFIM for Improving Channel Capacity. The Journal of Korean Institute of Communications and Information Sciences, 46, 7, (2021), 1138-1145. DOI: 10.7840/kics.2021.46.7.1138.

[KICS Style]

Jae Oh Kim, Denny Kusuma Hendraningrat, Bhaskara Narottama, Soo Young Shin, "A Study of NOMA-TFIM for Improving Channel Capacity," The Journal of Korean Institute of Communications and Information Sciences, vol. 46, no. 7, pp. 1138-1145, 7. 2021. (https://doi.org/10.7840/kics.2021.46.7.1138)

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pISSN : 1226 - 4717
eISSN : 2287 - 3880