A new approach of successive interference cancellation decoder in power domain non-orthogonal multiple access transmission

Talla, Belmien Carlos Konlack; Bossou, Olivier Videme; Feudjio, Cyrille; Mbogue, Joseph Ngimbog; Ngoufo, Gédéon Ghislain Nkwewo; Tchuidjan, Roger

doi:10.1007/s11276-022-03136-0

Cited by 2 publications

(7 citation statements)

References 19 publications

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“…P is the total transmit power from the BS, hi is the Rayleigh fading coefficients, σ 2 i is the noise variance, a f and a n are the power allocation factor assigned to Uf and Un, respectively. To illustrate the enhancement in SINR for each user in the proposed system, as compared with conventional NOMA, the instantaneous channel capacities in NOMA are given by [13]:…”

Section: A Hma-imentioning

confidence: 99%

Hybrid Multiple Access Techniques Performance Analysis Of Dynamic Resource Allocation

K. Mohammed,

N. Khamiss

2024

Iraqi Journal of ICT

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The Non-Orthogonal Multiple Access (NOMA) and the Orthogonal Frequency Division Multiple Access (OFDMA) are promising techniques for next-generation wireless systems. Although much attention in the literature considered these techniques, an effective combination between such systems as hybrid multiple access (HMA) needs more attention. For this reason, this paper devotes to proposing two different scenarios of HMA using multi-user OFDM (MU-OFDM) and power domain (PD) NOMA for downlink transmission to overcome the limitations of both Orthogonal Multiple Access (OMA) and NOMA. Due to the randomness of a wireless channel, different user grouping strategies and dynamic power allocation (DPA) strategies are employed to satisfy users’ requirements. The proposed systems give high flexibility utilizing bitrate allocation and user fairness. System results show superior performance to traditional OMA and NOMA systems. The achieved variety of fairness is helpful for the diversity of applications which is a principal requirement for beyond-fifth-generation (B5G) networks. The next step in this analysis is to enhance the proposed systems’ spectral efficiency (SE) by introducing beamforming for massive Multiple-Input Multiple-Output (MIMO) systems. The bit error rate (BER) result of the proposed system achieves almost the same error floor with a benefit of approximately 10 dB signalto-noise ratio (SNR) when 90 resource blocks (RBs) are used.

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Section: A Hma-imentioning

confidence: 99%

Hybrid Multiple Access Techniques Performance Analysis Of Dynamic Resource Allocation

K. Mohammed,

N. Khamiss

2024

Iraqi Journal of ICT

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“…In the previously mentioned works [9][10][11][12], signal decoding is done using the classical SIC technique in which interference with other signals is not completely eliminated, leading to a negative impact on the overall system performance. In this article, we propose an analysis of performance in terms of signal outage probability in PD-NOMA transmissions, where decoding is based on a novel successive interference cancellation scheme [8] This new scheme allows canceling all interfering signals with the useful signal of each mobile. The rest of this article will be structured as follows: in Section 3, we will present the system modeling, the new interference cancellation scheme for our system, the analysis of interruption probabilities in PD-NOMA transmissions, with decoding based on both the standard successive interference cancellation (SIC) model and the new interference cancellation scheme.…”

Section: Related Workmentioning

confidence: 99%

“…Thus, the user furthest from the relay station, i.e., the one with the lowest path gain is assigned the greatest power meanwhile, the one closest to the relay station (highest path gain) is assigned the lowest power. We therefore have the following relation order between the powers [8]:…”

Section: System Modelingmentioning

confidence: 99%

“…Here each mobile first decodes the highest power signal then subtracts this signal from the composite signal emitted by the relay station. The process is repeated at the new composite signal received until the desired signal is obtained [8]. Therefore, each user performs successive interference cancellation operations in decreasing order of power until the desired signal is obtained.…”

Section: Pd-noma With Standard Sic Decoding Schemementioning

confidence: 99%

“…Among these techniques, the Power Domain Non-Orthogonal Multiple Access (PD-NOMA) technique holds a significant position. In the PD-NOMA technique [8], the relay station allocates different powers to the signals of different users. Thus, the user farthest from the relay station, having the weakest path gain, is assigned the highest power, while the user closest to the relay station (with higher path gain) is assigned the lowest power.…”

Section: Introductionmentioning

confidence: 99%

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Analysis of the impact of a new successive interference cancellation decoder on outage probability performance in power Domain Non- Orthogonal Multiple Access Transmission

Talla,

Bossou,

Feudjio

et al. 2023

Preprint

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In this article, we evaluate the impact of a new successive interference cancellation scheme on the signal outage probability in the context of PD-NOMA (Power Domain Non-Orthogonal Multiple Access) transmissions. The outage probabilities were assessed for 2 users, UE1 (closest to the base station), and UE2 (farthest from the base station), in a Rayleigh fading channel. The conducted simulations enable a comparison of signal outage probabilities for mobiles using a proposed successive interference cancellation (SIC) decoding scheme, where all interferences with other signals are cancelled, and a standard successive interference cancellation scheme, where only interferences from stronger signals are cancelled. Our simulations establish that the proposed SIC decoding model improves the outage probability performance by 25% for the user farthest from the base station. Generally, an improvement is observed for all mobiles in the network except for the strongest user closest to the base station. In fact, the performance of both SIC decoding models remains identical for the specific case of the strongest user.

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A new approach of successive interference cancellation decoder in power domain non-orthogonal multiple access transmission

Cited by 2 publications

References 19 publications

Hybrid Multiple Access Techniques Performance Analysis Of Dynamic Resource Allocation

Hybrid Multiple Access Techniques Performance Analysis Of Dynamic Resource Allocation

Analysis of the impact of a new successive interference cancellation decoder on outage probability performance in power Domain Non- Orthogonal Multiple Access Transmission

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