An Application of NOMA for CRDSA Performance Improvement in Random Access Satellite Networks 


Vol. 44,  No. 6, pp. 1064-1071, Jun.  2019
10.7840/kics.2019.44.6.1064


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  Abstract

The emergence of CRDSA (Contention Resolution Diversity Slotted ALOHA) technology has provided the opportunity to use random access schemes for user traffic transmission in a satellite network environment. Many studies have been conducted to improve the performance of CRDSA. However, since the techniques for improving CRDSA to date use a form of increasing the number of duplicate packets, the packet transmission rate is improved rather than CRDSA, but the power efficiency is decreased due to an increase in the number of duplicated packets. As satellite terminals are developed to be compact and mobile, efficient random access technology is very important. In this paper, we propose to apply the non-orthogonal multiple access (NOMA) technique to CRDSA to improve the packet transmission rate while maintaining the same power efficiency as CRDSA. We propose a method to apply NOMA to satellite network and verify the performance of NOMA-CRDSA through simulation.

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  Cite this article

[IEEE Style]

H. Lim, M. Lee, J. Lim, "An Application of NOMA for CRDSA Performance Improvement in Random Access Satellite Networks," The Journal of Korean Institute of Communications and Information Sciences, vol. 44, no. 6, pp. 1064-1071, 2019. DOI: 10.7840/kics.2019.44.6.1064.

[ACM Style]

Hyeongkyu Lim, Minwoo Lee, and Jaesung Lim. 2019. An Application of NOMA for CRDSA Performance Improvement in Random Access Satellite Networks. The Journal of Korean Institute of Communications and Information Sciences, 44, 6, (2019), 1064-1071. DOI: 10.7840/kics.2019.44.6.1064.

[KICS Style]

Hyeongkyu Lim, Minwoo Lee, Jaesung Lim, "An Application of NOMA for CRDSA Performance Improvement in Random Access Satellite Networks," The Journal of Korean Institute of Communications and Information Sciences, vol. 44, no. 6, pp. 1064-1071, 6. 2019. (https://doi.org/10.7840/kics.2019.44.6.1064)

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pISSN : 1226 - 4717
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