On the Secrecy Performance of NOMA-Based Integrated Satellite Multiple-Terrestrial Relay Networks With Hardware Impairments

Guo, Kefeng; An, Kang; Zhou, Feng; Tsiftsis, Theodoros A.; Zheng, Gan; Chatzinotas, Symeon

doi:10.1109/tvt.2021.3068062

Cited by 51 publications

(40 citation statements)

References 61 publications

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“…In this section, we investigate the key parameters on system performance of the considered ISTNs, and verify the analytical research under different conditions through MC simulations. For the simplification of the simulation, we suppose the AWGN and average SNR of the two time slots are identically, namely, σ 2 SRn = σ 2 R n * Ui = σ 2 andγ SRn =γ R n * Ui = ρ [13]. The system simulation parameters are given in Table 1 [9].…”

Section: Numerical Resultsmentioning

confidence: 99%

“…Increasing the utilization of the spectrum is the requirement for the B5G networks. However, the traditional orthogonal multiple access (OMA) cannot meet the requirements of spectrum utilization efficiency [13]. The emergence of nonorthogonal multiple access (NOMA) scheme can overcome this shortcoming, which can transmit the wireless signals to multiple users at the same time/frequency through power/code domain multiples [14]- [16].…”

Section: Introductionmentioning

confidence: 99%

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NOMA-Based Integrated Satellite Terrestrial Networks With Relay Selection and Imperfect SIC

Shuai

Guo

et al. 2021

IEEE Access

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Integrated satellite terrestrial networks (ISTNs) are becoming a hot research topic in recent years due to the capabilities of high quality, high throughput, and seamless coverage. However, the limited spectrum resources are difficult to meet the needs of a large number of users in ISTNs, and the obstacles and shadowing will seriously affect the communication quality of networks. In this regard, cooperative transmission of non-orthogonal multiple access (NOMA)-assisted ISTNs with the help of multiple terrestrial relays are established to enhance the spectrum efficiency and enlarge the transmission coverage. In this paper, we investigate the performance of NOMA-based ISTNs with relay selection and imperfect successive interference cancellation (SIC). Particularly, the partial relay selection (PRS) scheme is used in the considered system to reach the balance of system performance and complexity. Owing to practical constraints, the imperfect SIC is analyzed for the networks. Based on the PRS scheme and imperfect SIC, we obtain the closed-form expressions for the outage probability (OP) and ergodic capacity (EC) of the considered networks. Besides, to get further insights of key system parameters, the asymptotic analysis for the OP is also derived. Finally, numerical and simulation results are presented to validate the correctness of our analytical results. INDEX TERMS Integrated satellite terrestrial networks (ISTNs), non-orthogonal multiple access (NO-MA), relay selection, successive interference cancellation (SIC).

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Section: Numerical Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

NOMA-Based Integrated Satellite Terrestrial Networks With Relay Selection and Imperfect SIC

Shuai

Guo

et al. 2021

IEEE Access

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“…Assuming

are integer values [ 9 ], after some algebraic manipulation [ 35 ], we can obtain the expression of the PDF as follows:

where

and

denotes the Pochhammer symbol [ 37 ].…”

Section: System Modelmentioning

confidence: 99%

“…Quality of service (QoS) and spectral efficiency are two vital constraints of the further development of LMS systems [ 9 ]. In this regard, a non-orthogonal multiple access (NOMA) scheme has been adopted in LMS systems to improve spectral efficiency and enhance the experience of served sensor users and devices [ 10 , 11 ].…”

Section: Introductionmentioning

confidence: 99%

Ergodic Capacity of NOMA-Based Multi-Antenna LMS Systems with Imperfect Limitations

Shuai

Liu

Zhu

et al. 2022

Sensors

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With the rapid development of land mobile satellite (LMS) systems, large scale sensors and devices are willing to request wireless services, which is a challenge to the quality of service requirement and spectrum resources utilization on onboard LMS systems. Under this situation, the non-orthogonal multiple access (NOMA) is regarded as a promising technology for improving spectrum efficiency of LMS systems. In this paper, we analyze the ergodic capacity (EC) of NOMA-based multi-antenna LMS systems in the presence of imperfect limitations, i.e., channel estimation errors, imperfect successive interference cancellation, and co-channel interference. By considering multiple antennas at the satellite and terrestrial sensor users, the closed-form expression for EC of the NOMA-based LMS systems with imperfect limitations is obtained. Monte Carlo simulations are provided to verify theoretical results and reveal the influence of key parameters on system performance.

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“…The primary network includes a terrestrial PT and N terrestrial PUs, 1 the secondary network consists of a satellite (S), a terrestrial relay (R) and two terrestrial users (SU 1 and SU 2 ). 2 We assume that each node is equipped with a single antenna, 3 and S can not communicate with SU i (i = 1, 2) directly due to rain, fog or other masking effects. Hence, a half-duplex decode-and-forward (DF) R is utilized to assist the transmission.…”

Section: System Modelmentioning

confidence: 99%

Performance Evaluation of NOMA-Based Cognitive Integrated Satellite Terrestrial Relay Networks With Primary Interference

Liu

Guo

et al. 2021

IEEE Access

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Satellite communication has attracted great interests due to extensive coverage and no terrain restriction, which can make up for the shortcomings of terrestrial communication, especially in remote areas. Hence, integrated satellite-terrestrial relay network (ISTRN) is considered as a promising research direction. However, the shortage of spectrum resources is becoming the bottleneck of the future development of ISTRN because of the low utilization of spectrum. In this regard, non-orthogonal multiple access (NOMA) scheme and cognitive radio are considered as great ways to solve this problem. This paper investigates the performance of a NOMA-based ISTRN under spectrum sharing environment with primary interference. Particularly, the exact closed-form expressions of outage probability and ergodic capacity are derived to evaluate the system performance, where the interference constraint caused by the multiple primary users and the interference of primary transmitter have been considered. Furthermore, in order to reveal the impacts of key parameters on system performance at high signal-to-noise ratios efficiently, the asymptotic analysis of OP is also provided. After that, we obtain the relationship between system performance and the power allocation factor, the number of primary users, interference parameter or the channel environment, which will enlighten the research of NOMA-based cognitive ISTRN. At last, Monte Carlo results are provided to verify the effectiveness of our theoretical analysis. INDEX TERMSIntegrated satellite-terrestrial relay network (ISTRN), Non-orthogonal multiple access (NOMA), Cognitive radio (CR), Primary interference (PI).

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On the Secrecy Performance of NOMA-Based Integrated Satellite Multiple-Terrestrial Relay Networks With Hardware Impairments

Abstract: Integrated satellite terrestrial networks and non-orthogonal multiple access (NOMA) have been confirmed to be promising and effective approaches to achieve substantial pe... View more

Cited by 51 publications

References 61 publications

NOMA-Based Integrated Satellite Terrestrial Networks With Relay Selection and Imperfect SIC

NOMA-Based Integrated Satellite Terrestrial Networks With Relay Selection and Imperfect SIC

Ergodic Capacity of NOMA-Based Multi-Antenna LMS Systems with Imperfect Limitations

Performance Evaluation of NOMA-Based Cognitive Integrated Satellite Terrestrial Relay Networks With Primary Interference

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