Outage Performance Analysis for a DF Based Hybrid Scheme over Log-normal Fading Channels

Liu, Yingting; Pan, Zhengwei; Shen, Jianmei; Yang, Hongwu; Yan, Chunman

doi:10.1109/iccchinaw.2019.8849966

Cited by 2 publications

(2 citation statements)

References 15 publications

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“…By substituting the change of variable z = tan(η) + κ into (49) and applying the Gauss-Chebyshev quadrature [44], [45], J 1 is expressed in closed-form as (18) where K denotes the parameter that represents the trade-off between accuracy and complexity of the Gauss-Chebyshev quadrature [46]. J 2 can also be approximated by the Gauss-Chebyshev quadrature as shown in (19).…”

Section: Appendix a Proof Of Theoremmentioning

confidence: 99%

Two-Way Relaying Non-Orthogonal Multiple Access With Imperfect Successive Interference Cancellation in Power Line Communications

Ahiadormey

Anokye

Park

et al. 2020

IEEE Open J. Commun. Soc.

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In this paper, we study the application of cooperative non-orthogonal multiple access (NOMA) in power line communication (PLC) where two users exchange information using a two-way relay (TWR). Under the assumption of perfect and imperfect successive interference cancellation (SIC), we analyze key performance metrics for PLC log-normal channels impaired by impulsive noise. In particular, for delay-limited (DL) and delay-tolerant (DT) modes, approximate closed-form expressions are derived for the user outage probability and user ergodic rate. The analytic results are verified via Monte Carlo simulations. Compared with the conventional orthogonal multiple access (OMA) scheme, the simulation results show that our proposed NOMA TWR enhances the user outage probability and the user ergodic rate performance in the low signal-to-noise ratio (SNR) region. However, this gain diminishes as the imperfect SIC error increases and is non-existent beyond a certain level of imperfect SIC. Furthermore, the system performance is maximized by optimizing the power allocation coefficients where the system throughput and ergodic sum-rate of the NOMA TWR network in DL and DT operation, respectively, are shown to approach a ceiling in the presence of imperfect SIC. The energy efficiency (EE) of the proposed system is also analyzed for DL and DT modes.

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Section: Appendix a Proof Of Theoremmentioning

confidence: 99%

Two-Way Relaying Non-Orthogonal Multiple Access With Imperfect Successive Interference Cancellation in Power Line Communications

Ahiadormey

Anokye

Park

et al. 2020

IEEE Open J. Commun. Soc.

View full text Add to dashboard Cite

show abstract

“…The ABER and ergodic capacity (EC) of our considered dual-hop FSO systems with the AF and DF protocols was investigated in [12] and [13], respectively. In addition, [14] and [15] scrutinized the outage probability (OP) of the dualhop FSO systems for both the AF and DF relay protocols, and the results demonstrated that a system with the DF protocol yielded a larger SNR gain than one based on the AF protocol.…”

mentioning

confidence: 99%

Dual-Hop Optical Communication Systems Over Málaga Turbulence Under Pointing Error Impairments With Decode-and-Forward Protocol

Zhang

et al. 2022

IEEE Photonics J.

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As a promising technology, free-space optical (FSO) communication plays an important role in the next generation of wireless communication. A dual-hop FSO communication system with decode-and-forward (DF) protocol is proposed in this paper, considering the influences of the atmospheric turbulence (AT), atmospheric absorption and pointing error impairments, in which the Málaga distribution model is used to characterize the fading caused by AT in each link. The end-to-end statistical expressions of our proposed dual-hop Málaga-Málaga communication system are derived, such as the cumulative distribution function (CDF), probability density function and moment generating function. Thereafter, using the above statistical results, the accurate endto-end expressions of outage probability, average bit error rate (ABER) and ergodic capacity are deduced under the direct detection intensity modulation and heterodyne detection techniques. Furthermore, the end-to-end asymptotic expressions for CDF and the ABER at high signal-to-noise ratio as well as simplified expressions from simple basic functions are obtained. The effects of different AT and pointing error impairments conditions on the proposed system are analyzed based on theoretical and numerical results. Finally, Monte Carlo simulation results indicate that all our novel deduced expressions are basically consistent with the numerical results.

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Outage Performance Analysis for a DF Based Hybrid Scheme over Log-normal Fading Channels

Cited by 2 publications

References 15 publications

Two-Way Relaying Non-Orthogonal Multiple Access With Imperfect Successive Interference Cancellation in Power Line Communications

Two-Way Relaying Non-Orthogonal Multiple Access With Imperfect Successive Interference Cancellation in Power Line Communications

Dual-Hop Optical Communication Systems Over Málaga Turbulence Under Pointing Error Impairments With Decode-and-Forward Protocol

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