Outage Performance Comparison of Dual-Hop Half/Full Duplex Wireless UAV System over Weibull Fading Channel

Gupta, Mitali; Anandpushparaj, J.; Muthuchidambaranathan, P.; Jayakody, Dushantha Nalin K.

doi:10.1109/wispnet48689.2020.9198350

Cited by 11 publications

(5 citation statements)

References 11 publications

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“…Further, it has been also preferred for UAV communication as a suitable fading channel model under low-and high-altitude situations. Most recently, using this fading channel, the UAV communication system performance was explored based on outage probability and throughput under the direct link and non-direct link via relay scenarios [49,50]. However, the performance metrics were evaluated under the orthogonal multiple access (OMA) scheme, and the UAV served as a dedicated relay.…”

Section: Related Work and Contributionsmentioning

confidence: 99%

HD/FD Cooperative NOMA under UAV Deployment for a Novel Disaster-Management Model

Kumar

Kumar²

2023

Electronics

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This work presents a novel system model consisting of an unmanned aerial vehicle (UAV) equipped with a half/full-duplex relay (HDR/FDR) operating as a near-user in the downlink non-orthogonal multiple access (NOMA) systems. In a disaster situation, there is no direct connectivity of the active base station (BS) to the far user due to the out-of-coverage range. Therefore, UAV communication is established to aid the transmission from the same BS to the far user via the UAV. To quantify the effect, outage probability and throughput expressions in the exact and asymptotic forms were developed over the Weibull distribution (WD) fading channel. Additionally, the separation distance of the UAV from the base station is considered to quantify the effect. In particular, this paper helps to determine the optimal location of the UAV deployment from the BS at a fixed height from the ground to either maximize the far-user throughput or attain far-user throughput over different conditions of the WD fading channel. In addition, the performance results of the UAV-HDR/FDR-NOMA system are compared with those of a conventional downlink orthogonal multiple access (OMA) system. The comparison reveals that the UAV-HDR/FDR-NOMA systems outperform corresponding OMA systems in terms of outage probability and throughput over different values of the Weibull shaping index. The analytical results are then validated through numerical simulations on MATLAB.

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Section: Related Work and Contributionsmentioning

confidence: 99%

HD/FD Cooperative NOMA under UAV Deployment for a Novel Disaster-Management Model

Kumar

Kumar²

2023

Electronics

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“…Various channel models have been introduced in the literature to analyze the performance of relaying systems in 5G scenarios. These generalized fading models can be categorized into small-scale multipath scattering propagation models such as Rayleigh [5], Rican [6], Nakagami-m [7], Weibull [8], Nakagami-q [9], η − λ − µ [10], α − λ − µ [11], κ − µ [12], α − µ, and η − µ fading; composite multipath shadowing line of sight (LOS) propagation (composite small-and large-scale fading) models such as generalized Gamma [13] and generalized K [14] fading; and composite multipath scattering and shadowing propagation models with LOS, such as the fluctuating two-ray (FTR) fading model [15,16].…”

Section: Related Workmentioning

confidence: 99%

“…Weibull fading has proven to produce a good fit to experimental data in multipath fading and contains Rayleigh fading as a special case. Weibull can also model fading scenarios worse than Rayleigh fading for c < 2 [8]. This scenario models multipath fading in both links.…”

Section: Sr No Fading Channel Cdf Evaluated At and From γ Thmentioning

confidence: 99%

A Generalized Approach on Outage Performance Analysis of Dual-Hop Decode and Forward Relaying for 5G and beyond Scenarios

et al. 2022

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This paper presents a generalized approach to the performance analysis of relay-aided communication systems for 5G-and-beyond scenarios. A dual-hop decoding and forwarding scheme is considered in the analysis. The relationship between the outage performance and cumulative distribution function (CDF) of the signal-to-noise ratio (SNR) is exploited to derive a universal expression of the outage probability that is valid for all fading scenarios, irrespective of their nature or complexity. Furthermore, an effort is made to parameterize the channel PDF in such a manner that reflects a practical fading scenario that is commonly encountered in current and future wireless communication systems. The analytical results obtained for various cases are validated through Monte-Carlo simulations.

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“…It is worth noting that while the Rayleigh fading model has advantage in simplifying mathematical operations, the LN fading model is used to model propagation links in indoor environments. The Weibull fading distribution has been applied to derive the OP in terms of the precise expressions for the dual-hop wireless unmanned aerial vehicles communications systems, since it gives results that are exactly consistent with the experimental measurements of the fading channel for both indoor and outdoor environments [29]. Zedini et al in [20] proposed a dual-hop FSO communication system with AF relay protocol using GG turbulence model to evaluate the impacts of AT and pointing errors on system performance.…”

mentioning

confidence: 94%

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 Comparison of Dual-Hop Half/Full Duplex Wireless UAV System over Weibull Fading Channel

Cited by 11 publications

References 11 publications

HD/FD Cooperative NOMA under UAV Deployment for a Novel Disaster-Management Model

HD/FD Cooperative NOMA under UAV Deployment for a Novel Disaster-Management Model

A Generalized Approach on Outage Performance Analysis of Dual-Hop Decode and Forward Relaying for 5G and beyond Scenarios

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

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