Securing Downlink Massive MIMO-NOMA Networks With Artificial Noise

Zeng, Ming; Nguyen, Nam-Phong; Dobre, Octavia A.; Poor, H. Vincent

doi:10.1109/jstsp.2019.2901170

Cited by 90 publications

(57 citation statements)

References 38 publications

(58 reference statements)

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“…One of the aims of this letter is to introduce a system architecture to further reduce the OP in MIMO‐NOMA structures. Beamforming and OP in mmWave massive MIMO systems have been discussed in Zeng et al In this paper, it is shown that the proposed system outperforms the conventional massive MIMO‐OMA.…”

Section: Introductionmentioning

confidence: 79%

Space‐time block coding in millimeter wave large‐scale MIMO‐NOMA transmission scheme

Aghdam

Tazehkand

Abdolee

et al. 2020

Int J Communication

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In this paper, we introduce a new wireless system architecture using space-time block coding schemes (STBC) and non-orthogonal multiple access (NOMA) in millimeter wave (mmWave) large-scale MIMO systems. The proposed STBC mmWave large-scale MIMO-NOMA system utilizes two MIMO subarrays, transmitting data over two channel vectors to mobile users.To reduce the communication overhead and latency in the system, we utilize random beamforming with optimal coefficients at the base station and random-near random-far user pairing in implementing the NOMA scheme.Our results show that the proposed STBC mmWave large-scale MIMO-NOMA technique significantly outperforms the previous counterparts. KEYWORDSMIMO, NOMA, mmWave, STBC, optimal beamforming INTRODUCTIONDue to the growing number of mobile users and the demand by the newly introduced machine-type communications (MTC), the next generation of wireless communication systems requires to support massive connectivity, and offers low latency with ultra communication reliability. 1,2 To support massive connectivity, the use of non-orthogonal multiple access (NOMA) techniques was introduced in Kim et al. 3 By applying superposition coding and successive interference cancellation (SIC), NOMA allows multiple users to access the same time-frequency resource, leading to further improvement in the spectral efficiency (SE) and massive connectivity compared to orthogonal multiple access (OMA). 4 It has also been shown that using NOMA in conjunction of multi-input multi-output (MIMO) structure can further enhance the SE. 5 User pairing plays a key role in improving the performance of NOMA systems. Recently, several different user pairing schemes were introduced in NOMA communication systems. 6 In Beyranvand et al., 7 three random user pairing techniques were proposed, all of which were based on the random distribution of users in a cell.Although random user pairing reduces the latency, it increases the outage probability (OP) compared to other pairing methods. 1,7,8 Chopra et al. 8 derived a closed-form expression that provides the optimal number of transmit antennas to minimize the OP of such systems. One of the aims of this letter is to introduce a system architecture to further reduce the OP in MIMO-NOMA structures. Beamforming and OP in mmWave massive MIMO systems have been discussed in Zeng et al. 9 In this paper, it is shown that the proposed system outperforms the conventional massive MIMO-OMA.In recent studies, it has been shown that the combination of NOMA and conventional STBC schemes can lead to substantial performance improvement. [10][11][12][13] Toka and Kucur, 10 investigated the performance of the Alamouti code in NOMA over Nakagami-m fading channels. Arti 14 proposed a space-time transmission scheme (STTS) for large-scale MIMO communication system. Int J Commun Syst. 2020;33:e4392.wileyonlinelibrary.com/journal/dac

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Section: Introductionmentioning

confidence: 79%

Space‐time block coding in millimeter wave large‐scale MIMO‐NOMA transmission scheme

Aghdam

Tazehkand

Abdolee

et al. 2020

Int J Communication

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“…Figure shows the averaged secrecy rate

{scriptC}_{s}

for 1 cluster vs the signal‐to‐noise ratio (SNR), showing the effect of π := π α − π κ on the search region . In this figure, our scheme with and without SWIPT is compared with the OMA one and even the exhaustive search method and Reference . Moreover, the effect of AN coding is also considered on the security.…”

Section: Numerical Resultsmentioning

confidence: 99%

“…In Figure , EE is evaluated for our proposed scheme as

\frac{\sum_{i} ℛ}{\sum_{i} P}

, compared to Reference and the traditional Dinkelbach method . Our proposed precoding design completely outperforms the existing work.…”

Section: Numerical Resultsmentioning

confidence: 99%

PHY‐layer Security of MIMO‐NOMA with SWIPT

Zamanipour

2019

Internet Technology Letters

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A flexible and secure artificial noise (AN)‐aided framework is proposed for multi‐input multioutput (MIMO) nonorthogonal multiple‐access (NOMA) systems. We guarantee resource allocation in a multicluster paradigm with simultaneous wireless power and information transfer (SWIPT) exploiting the power‐splitting technique. This recourse allocation is fulfilled where: (a) the energy‐harvesting receivers do not intercept the nonrelative data; while (b) decoding the relative cell‐edge user in the same cluster. We provide closed‐form solutions, as well as proposition of the controller π ∈{πα − πκ} for the case of imperfect channel estate information (CSI). Simulation results show that our proposed framework is superior to the existing work in terms of rate enhancement and energy efficiency maximization, experiencing the acceptable complexity ≈Onitalicit()italiciN24.5.

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“…Under this assumption, we obtain the lower bound on the achievable system secrecy rate due to the unfavourable scenario regarding the eavesdropping capacity. Recent research shows that actually the inter-user interference can help enhance information transmission security of NOMA networks in the presence of passive eavesdropper [31]. How it affects the secrecy performance of our considered NOMAassisted MEC networks is an interesting direction to pursue in the future work.…”

Section: Apmentioning

confidence: 95%

Energy-Efficient Resource Allocation for Secure NOMA-Enabled Mobile Edge Computing Networks

Wei

Zhou

et al. 2020

IEEE Trans. Commun.

187

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Mobile edge computing (MEC) has been envisaged as a promising technique in the next-generation wireless networks. In order to improve the security of computation tasks offloading and enhance user connectivity, physical layer security and non-orthogonal multiple access (NOMA) are studied in MEC-aware networks. The secrecy outage probability is adopted to measure the secrecy performance of computation offloading by considering a practically passive eavesdropping scenario. The weighted sum-energy consumption minimization problem is firstly investigated subject to the secrecy offloading rate constraints, the computation latency constraints and the secrecy outage probability constraints. The semi-closed form expression for the optimal solution is derived. We then investigate the secrecy outage probability minimization problem by taking the priority of two users into account, and characterize the optimal secrecy offloading rates and power allocations with closed-form expressions. Numerical results demonstrate that the performance of our proposed design are better than those of the alternative benchmark schemes.Index Terms-Mobile edge computing, non-orthogonal multiple access, physical layer security, secrecy outage probability, partial offloading.

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Securing Downlink Massive MIMO-NOMA Networks With Artificial Noise

Cited by 90 publications

References 38 publications

Space‐time block coding in millimeter wave large‐scale MIMO‐NOMA transmission scheme

Space‐time block coding in millimeter wave large‐scale MIMO‐NOMA transmission scheme

PHY‐layer Security of MIMO‐NOMA with SWIPT

Energy-Efficient Resource Allocation for Secure NOMA-Enabled Mobile Edge Computing Networks

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