Physical-Layer Security of Underlay MIMO-D2D Communications by Null Steering Method Over Nakagami-<i>m</i> and Norton Fading Channels

Kumar, Ajay; Majhi, Sudhan; Wu, Hsiao-Chun

doi:10.1109/twc.2022.3178758

Cited by 8 publications

(4 citation statements)

References 34 publications

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“…Thus, UAVs are employed to set up reliable links with guaranteed QoS indicators. MIMO antenna systems not only improve the spectral efficiency but also reliability and coverage area [27]. To leverage the agility of UAVs along with the MIMO antennas, it is very timely and interesting to investigate the performance of MIMO systems.…”

Section: B Motivationmentioning

confidence: 99%

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Analysis of Multi-User-Based UAV System With Outdated CSI

Shaik,

Keçeci,

Garg

et al. 2024

IEEE Open J. Commun. Soc.

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In this paper, we investigate the performance of multiple-input and multiple-output (MIMO) unmanned air vehicle (UAV) based multi-user communication systems over generalized Nakagami-m fading channels subject to channel feedback delays. The impact of decode-and-forward (DF) based relaying and outdated channel state information is assessed at the receiver nodes. To reduce the complexity and retain the MIMO gains, the transmit antenna selection (TAS) strategy is used to select the best antenna at the source and UAV nodes. A generic framework in the form of closed-form analytical expressions for outage probability (OP), asymptotic OP, and the average symbol error rate of higher-order quadrature amplitude modulation (QAM) schemes such as hexagonal QAM, rectangular QAM, and cross QAM are derived. In addition, energy efficiency analysis is also performed for the considered system model. In this framework, altitude and location-dependent path loss modeling are considered for the air-to-ground links. Optimization of UAV location and altitude is performed through a limited-memory Broyden-Fletcher-Goldfarb-Shanno (LBFGS) algorithm to attain minimum OP (MOP). Results illustrate optimal performance dependent on the channel correlation parameters, antenna elements, and fading conditions. Monte-Carlo simulations are performed to validate the derived analytical results and compared with the existing works.

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Section: B Motivationmentioning

confidence: 99%

“…The integrals in I R1 and I R2 are resolved by using the identities [41, eq. (3.371), (7.522.9)] and substituting them into (42) to get the closed-form expression (27).…”

Section: Appendix B Proof Of Propositionmentioning

confidence: 99%

Analysis of Multi-User-Based UAV System With Outdated CSI

Shaik,

Keçeci,

Garg

et al. 2024

IEEE Open J. Commun. Soc.

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“…The main drivers of VC applications are multimedia and safety. While traffic management and multimedia applications require increased energy efficiency (EE), spectrum efficiency (SE), and high connectivity in V2I and V2V wireless communications, safety messages need an exceptional end-to-end dependability and exceptionally low latency [5]. Un fortunately, existing VC technologies, such as wireless access in vehicular environments, 4G, and LTE-A, are based on orthogonal frequency division multiple access (OFDMA) and are unable of providing the high SE and end-to-end reliability rates required for enhancing VC.…”

Section: Introductionmentioning

confidence: 99%

Analysis of an LSTM-based NOMA Detector Over Time Selective Nakagami-m Fading Channel Conditions

Shankar¹,

Bangare²,

Kumar³

et al. 2022

JTIT

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This work examines the efficacy of deep learning (DL) based non-orthogonal multiple access (NOMA) receivers in vehicular communications (VC). Analytical formulations for the outage probability (OP), symbol error rate (SER), and ergodic sum rate for the researched vehicle networks are established Rusing i.i.d. Nakagami-m fading links. Standard receivers, such as least square (LS) and minimum mean square error (MMSE), are outperformed by the stacked long-short term memory (S-LSTM) based DL-NOMA receiver. Under real time propagation circumstances, including the cyclic prefix (CP) and clipping distortion, the simulation curves compare the performance of MMSE and LS receivers with that of the DL-NOMA receiver. According to numerical statistics, NOMA outperforms conventional orthogonal multiple access (OMA) by roughly 20% and has a high sum rate when considering i.i.d. fading links.

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“…The authors evaluated secrecy outage probability [11] using a Nakagami-m fading channel model for a fixed value of m. Some of the existing literature analyzed the performance of UAV-based CC [12]- [17] by considering Nakagami-m…”

mentioning

confidence: 99%

UAV-Assisted Network Coded Cooperation by Using Height-Dependency Shaping Parameters in Nakagami-m Faded Channel

Kumar,

Majhi

2024

IEEE Access

Self Cite

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In this paper, we propose a height-dependency shaping parameter (m) and a heightdependency path-loss exponent for modelling small-scale Nakagami-m fading and a large-scale path-loss model for unmanned aerial vehicle (UAV)-assisted network coded cooperation (UA-NCC) system. The statistical parameters such as mean, variance, and probability density function (PDF) of the total noise component (TNC) are analyzed for the proposed system model to achieve the error free communication. We derive spectral efficiency, throughput, and a closed-form outage probability for the UA-NCC system by considering height-dependency shaping parameter (m) and the height-dependency path-loss exponent among ground-to-air (G2A) and air-to-ground (A2G) links, and Rayleigh channel distribution among ground users. The analytical result is validated with simulation results and compared it with the existing work (Rayleigh and Rician fading channel distribution). However, the better performance in the case of the proposed work comes over the existing state-of-the-art (Rayleigh and Rician fading distribution environment) after a UAV height of 10 m.INDEX TERMS UAV, Network coded cooperation, Nakagami-m channel, Rician and Rayleigh channel, Outage probability, Spectral efficiency, Throughput.

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Physical-Layer Security of Underlay MIMO-D2D Communications by Null Steering Method Over Nakagami-m and Norton Fading Channels

Cited by 8 publications

References 34 publications

Analysis of Multi-User-Based UAV System With Outdated CSI

Analysis of Multi-User-Based UAV System With Outdated CSI

Analysis of an LSTM-based NOMA Detector Over Time Selective Nakagami-m Fading Channel Conditions

UAV-Assisted Network Coded Cooperation by Using Height-Dependency Shaping Parameters in Nakagami-m Faded Channel

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