Non-Orthogonal Multiple Access With Alamouti Space–Time Block Coding

Toka, Mesut; Kucur, Oğuz

doi:10.1109/lcomm.2018.2849387

Cited by 45 publications

(42 citation statements)

References 13 publications

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“…Many works [10][11][12][13][14][15][16][17][18] proposed the NOMA systems with the MIMO techniques. Especially, in [10], a transmit antenna selection (TAS) scheme is proposed in the downlink NOMA network.…”

Section: Literature Reviewmentioning

confidence: 99%

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Performance of cooperative multiple‐input multiple‐output NOMA in Nakagami‐ m fading channels with channel estimation errors

Aldababsa

Kucur

2020

IET Communications

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This paper studies the performance of a downlink non-orthogonal multiple access (NOMA) based cooperative network with maximal ratio transmission/receive antenna selection (MRT/RAS) over Nakagami-m fading channels in the presence of channel estimation errors (CEEs). In the system, a base station communicates with multiple mobile users through a half duplex channel state information based amplify-andforward relay. All nodes are equipped with multiple antennas and the hybrid diversity technique MRT/RAS is employed in both hops. The outage behavior of the system is investigated by driving closed-form expression for outage probability (OP). In addition, the corresponding lower and upper bounds of the derived OP are obtained. Moreover, the behavior of the system is studied in high signal-to-noise ratio region by obtaining an error floor value in the presence of CEE as well as achieving diversity and array gains in the absence of CEE. Finally, the analytical results in the presence and absence of the CEEs are verified by the Monte Carlo simulations. Results show that the MRT/RAS scheme enhances the OP significantly and is much more robust to the CEEs in comparison with the single antenna case.

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Section: Literature Reviewmentioning

confidence: 99%

“…Furthermore, in [17], maximum ratio transmission (MRT) is applied to the NOMA network in order to have maximum sum rate. Also, another transmit diversity technique, conventional Alamouti space-time block coding (STBC) has been applied to the downlink NOMA in [18].…”

Section: Literature Reviewmentioning

confidence: 99%

Performance of cooperative multiple‐input multiple‐output NOMA in Nakagami‐ m fading channels with channel estimation errors

Aldababsa

Kucur

2020

IET Communications

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“…Consider a downlink NOMA system consisting of L LUs and one Eve with single antenna. The base station (BS) transmit superimposed symbols over two transmit antenna using the Alamouti code [11]. NOMA requires the knowledge of all LUs, and the condition that LUs have different channels conditions [2].…”

Section: System Modelmentioning

confidence: 99%

“…Closed-form expressions for outage probability and ergodic sum capacity were derived over Rayleigh fading channels. In [10], [11], the authors combined NOMA with Alamouti STBC to improve system diversity order of NOMA systems.…”

Section: Introductionmentioning

confidence: 99%

Secrecy Outage Analysis for Alamouti Space–Time Block Coded Non-Orthogonal Multiple Access

Yuan

Yue

et al. 2020

IEEE Commun. Lett.

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“…In recent studies, it has been shown that the combination of NOMA and conventional STBC schemes can lead to substantial performance improvement . Toka and Kucur, investigated the performance of the Alamouti code in NOMA over Nakagami‐ m fading channels. Arti proposed a space‐time transmission scheme (STTS) for large‐scale MIMO communication system.…”

Section: Introductionmentioning

confidence: 99%

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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Non-Orthogonal Multiple Access With Alamouti Space–Time Block Coding

Cited by 45 publications

References 13 publications

Performance of cooperative multiple‐input multiple‐output NOMA in Nakagami‐ m fading channels with channel estimation errors

Performance of cooperative multiple‐input multiple‐output NOMA in Nakagami‐ m fading channels with channel estimation errors

Secrecy Outage Analysis for Alamouti Space–Time Block Coded Non-Orthogonal Multiple Access

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

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