Antenna Selection in MIMO Cognitive Radio-Inspired NOMA Systems

Yu, Yuehua; Chen, He; Li, Yonghui; Ding, Zhiguo; Li, Zhuo

doi:10.1109/lcomm.2017.2750153

Cited by 44 publications

(41 citation statements)

References 10 publications

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“…The ergodic capacity for multiple-input multipleoutput (MIMO) NOMA systems was studied in [15], [16] and the capacity superiority of MIMO-NOMA over MIMO-OMA was proved. Moreover, transmit antenna selection (TAS) scheme has been verified as a low complexity solution to improve performance of NOMA systems when multiple antennas are available at the base station [17]- [22]. The authors of [17] and [18] investigated the performance of an energy harvesting AF relaying NOMA system with TAS scheme and closedform expressions for OP was obtained.…”

Section: A Background and Related Workmentioning

confidence: 99%

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Secrecy Outage of Max–Min TAS Scheme in MIMO-NOMA Systems

Lei

Zhang

Park

et al. 2018

IEEE Trans. Veh. Technol.

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Section: A Background and Related Workmentioning

confidence: 99%

“…Two TAS algorithms for MIMO-NOMA systems were proposed and the average sum-rates were analyzed in [21]. The same authors also proposed a joint TAS and PA scheme for a cognitive MIMO-NOMA system and the asymptotic OP was studied in [22].…”

Section: A Background and Related Workmentioning

confidence: 99%

Secrecy Outage of Max–Min TAS Scheme in MIMO-NOMA Systems

Lei

Zhang

Park

et al. 2018

IEEE Trans. Veh. Technol.

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“…Proof of Proposition 1: In general, OP can be defined as = 1 − ( , ≥ ℎ ) ≥ 1 − ( , ≥ ℎ ) = ( , < ℎ ) (17) As will be seen in Section 4, the numerical results show that the lower bound OP is about the exact one, and hence it can be considered to be roughly approximated value to the exact one, i.e., ≈ = . By using (12), the approximated of the th user can be stated as…”

Section: A Outage Probabilitymentioning

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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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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“…Ustunbas and Aygolu improve the sum‐rate of the downlink NOMA network with TAS by considering the fairness between the users. The outage probability (OP) performance of the joint AS algorithms proposed in Yu et al is studied for the cases of fixed power coefficients and optimized ones in Li et al and Yu et al, respectively. The secrecy OP performance of the NOMA networks has been investigated for different TAS schemes in previous works .…”

Section: Introductionmentioning

confidence: 99%

Outage and ergodic sum‐rate performance of cooperative MIMO‐NOMA with imperfect CSI and SIC

Aldababsa

Kucur

2020

Int J Communication

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Summary In this paper, we examine a half‐duplex cooperative multiple‐input multiple‐output non‐orthogonal multiple access system with imperfect channel state information (CSI) and successive interference cancelation. The base station (BS) and mobile users with multi‐antenna communicate by the assistance of a CSI based or fixed gain amplify‐and‐forward (AF) relay with a single antenna. The diversity schemes, transmit antenna selection, and maximal ratio combining are applied at the BS and mobile users, respectively. We study the system performance in terms of outage probability (OP) and ergodic sum‐rate. Accordingly, the exact OP expressions are first derived jointly for the CSI based and fixed gain AF relay cases in Nakagami‐m fading channels. Next, the corresponding lower and upper bound expressions of the OP are obtained. The high signal‐to‐noise ratio analyses are also carried out to demonstrate the error floor value resulted in the practical case and achievable diversity order and array gain in the ideal case. Moreover, the lower and upper bounds of the ergodic sum‐rate expressions are derived together for the CSI based and fixed gain AF relay cases. Finally, the Monte‐Carlo simulations are used to verify the correctness of the analytical results.

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Antenna Selection in MIMO Cognitive Radio-Inspired NOMA Systems

Cited by 44 publications

References 10 publications

Secrecy Outage of Max–Min TAS Scheme in MIMO-NOMA Systems

Secrecy Outage of Max–Min TAS Scheme in MIMO-NOMA Systems

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

Outage and ergodic sum‐rate performance of cooperative MIMO‐NOMA with imperfect CSI and SIC

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