Doubly irregular sparse code multiple access with EXIT analysis

Hidayat, Iswahyudi; Meylani, Linda; Kurniawan, Adit; Arifianto, Mohammad Sigit; Anwar, Khoirul

doi:10.1109/icsigsys.2018.8372648

Cited by 7 publications

(4 citation statements)

References 13 publications

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“…The process starts from the EU with a high diversity order. To evaluate the performance of the power scaling pattern, this paper uses the pattern matrix 3 × 7 in [11] by changing the non-zero elements to ones as shown in (17).…”

Section: Resultsmentioning

confidence: 99%

“…As one of code-domain NOMA, SCMA apply sparse code book, that is similar to low density signature in LDS-CDMA or LDS-OFDM, to each user/ layer and as a consequence, a certain resource can support more user. Hidayat et al [17], [18] proposed doubly irregular SCMA (DISCMA) that can improve overloading factor more than 300% and also proposed low complexity detection by using peeling decoding. Sharma et al [19] proposed a joint power and code domain NOMA.…”

Section: Introductionmentioning

confidence: 99%

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Investigating power scaling factor for pattern division multiple access

Meylani,

Widhi Prabowo,

Hidayat

et al. 2024

IJEECS

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Pattern division multiple access (PDMA) is a one type of multi-domain non-orthogonal multiple access (NOMA) that support massive connectivity and can improve spectral efficiency. The unique pattern is used by each user to map its transmitting data into a group of resource, which consist of frequency, code and spatial domain or combination of these resources. Power scaling and phase shifting are used to resolve ambiguity as consequence non uniform distribution of the received combined constellation. In this paper, we propose investigation on power scaling factor for each user in PDMA matrix to increase sum rate transmission and propose combine successive interference cancellation (SIC) based on diversity order and power scaling factor for each user. The simulation results confirm that the proper implement power scaling factor in pattern type 2 show best performance in Rician fading channels.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Investigating power scaling factor for pattern division multiple access

Meylani,

Widhi Prabowo,

Hidayat

et al. 2024

IJEECS

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“…Moreover, SCMA can improve network connectivity and maximize data rate provision [182], [183]. In other studies [70], [71], [184], [185], SCMA parameters were investigated both to reach the high quality of experience (QoE) requirements of IoT devices, and to explore the various performance aspects such as connectivity, throughput, task completion time, and complexity. Therefore, it is important to fit with the specific needs of each particular device to maintain satisfactory QoE in terms of computing and radio resources allocation.…”

Section: Sd Based Detectorsmentioning

confidence: 99%

“…Therefore, it is important to fit with the specific needs of each particular device to maintain satisfactory QoE in terms of computing and radio resources allocation. Thus, adaptive SCMA schemes with flexible resource scheduling were proposed in [72], [73], [184].…”

Section: Sd Based Detectorsmentioning

confidence: 99%

Sparse Code Multiple Access: Potentials and Challenges

Rebhi

Hassan

Raoof

et al. 2021

IEEE Open J. Commun. Soc.

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The massive connectivity is among other unprecedented requirements which are expected to be satisfied in order to follow the perpetual increase of connected devices in the era of internet of things. In contrast to the family of conventional orthogonal multiple access schemes, the key distinguishing feature of non-orthogonal multiple access (NOMA) is its capacity to support the massive connectivity. Sparse code multiple access (SCMA) is one of the powerful schemes of code-domain NOMA (CD-NOMA) and is among the promising candidates of multiple access techniques to be employed in future generations of wireless communication systems thanks to the sparsity pattern of its codebooks. This technique has been actively investigated in recent years. In this paper, we provide a comprehensive survey of the state-of-the-art of SCMA. First, we will pinpoint SCMA place in the NOMA landscape including power-domain NOMA and CD-NOMA with the aim of justifying why SCMA is prominent. Then, its system architecture is highlighted and its basic principles are presented, afterwards a review of exiting codebook designs and available SCMA detectors is provided, before showing how resources are expected to be assigned, and how SCMA can be combined with other existing and emerging technologies. Finally, we present a range of future research trends and challenging open issues that should be addressed to optimize SCMA performance.

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