• KSII Transactions on Internet and Information Systems
    Monthly Online Journal (eISSN: 1976-7277)

Enhancing Irregular Repetition Slotted ALOHA with Polarization Diversity in LEO Satellite Networks

Vol. 14, No. 9, September 30, 2020
10.3837/tiis.2020.09.019, Download Paper (Free):

Abstract

An enhanced irregular repetition slotted ALOHA (IRSA) protocol is proposed by using polarization characteristic of satellite link and MIMO detection in low earth orbit (LEO) satellite networks, which is dubbed polarized MIMO IRSA (PM-IRSA). In the proposed scheme, one or two packets in one slot can be decoded by employing polarized MIMO detection, and more than two collided packets in multiple slots which can construct the virtual MIMO model can be decoded by the MIMO detection algorithm. The performance of the proposed scheme is analyzed with the density evolution (DE) approach and the degree distribution is optimized to maximize the system throughput by using a differential evolution. Numerical results certify our analysis and show that the normalized throughput of the proposed PM-IRSA can achieve 1.89 bits/symbol.


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Cite this article

[IEEE Style]
J. Su, G. Ren, B. Zhao and J. Ding, "Enhancing Irregular Repetition Slotted ALOHA with Polarization Diversity in LEO Satellite Networks," KSII Transactions on Internet and Information Systems, vol. 14, no. 9, pp. 3907-3923, 2020. DOI: 10.3837/tiis.2020.09.019.

[ACM Style]
Jingrui Su, Guangliang Ren, Bo Zhao, and Jian Ding. 2020. Enhancing Irregular Repetition Slotted ALOHA with Polarization Diversity in LEO Satellite Networks. KSII Transactions on Internet and Information Systems, 14, 9, (2020), 3907-3923. DOI: 10.3837/tiis.2020.09.019.