Performance analysis of cooperative NOMA with a shared AF relay

Li, Yan; Li, Yongzhao; Chen, Yunfei; Ye, Yinghui; Zhang, Hailin

doi:10.1049/iet-com.2018.5415

Cited by 24 publications

(27 citation statements)

References 43 publications

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“…5,6 Liu et al 7 examined a NOMA system with cooperative relaying in which the strong user helps the weak user in information transmission. Next, in previous studies, 8,9 a NOMA system is investigated with basic relaying schemes and derived the expression for the outage.…”

Section: Introductionmentioning

confidence: 99%

Optimal power allocation‐based novel control jamming scheme for nonorthogonal multiple access enabled decode‐and‐forward relay network

Nayak

Gurrala

2021

Int J Communication

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In this work, a new control jamming (CJ) scheme has been proposed for a cooperative nonorthogonal multiple access (NOMA) network with optimal power allocation factors by employing decode-and-forward (DF) relay.Maximization of secrecy rate at both NOMA users with the aid of CJ under total transmit power constraint is considered as an optimization problem. In this regard, invasive weed optimization (IWO) algorithm-based approach is proposed to facilitate optimal power allocation for the considered network. In this analysis, performance metric secrecy rate is analyzed with CJ at both NOMA users by varying the location of eavesdropper with respect to the relay and jammer. In addition, the performance of fixed power allocation (FPA) and proposed power allocation (PPA) schemes is investigated with CJ and compared with jamming (J) and without jamming (WJ) conditions. Simulation result analysis specifies that secrecy performance is enhanced remarkably by CJ and PPA outperforms the FPA.

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Section: Introductionmentioning

confidence: 99%

Optimal power allocation‐based novel control jamming scheme for nonorthogonal multiple access enabled decode‐and‐forward relay network

Nayak

Gurrala

2021

Int J Communication

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“…In [16], NOMA based cooperative network is exploited to serve primary and secondary users by a BS, in which spatial diversity is utilized by the BS and among the secondary user to cope the impairments of fading in the channel. The authors in [17] propose NOMA to secure transmissions of two transceivers with their relative destinations over amplify-and-forward cooperative relaying technique. In the other hand, cooperative NOMA via relay is used for maximizing the power efficiency of transmission as suggested in [18], in which a harvested energy of the signals is exploited for sending the information to the intended destination.…”

Section: Introductionmentioning

confidence: 99%

On the performance of non-orthogonal multiple access (NOMA) using FPGA

Ahmed¹,

Mahmmod²,

Azeez³

2020

IJECE

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In this paper, non-orthogonal multiple access (NOMA) is designed and implemented for the fifth generation (5G) of multi-user wireless communication. Field-programmable gate array (FPGA) is considered for the implementation of this technique for two users. NOMA is applied in downlink phase of the base-station (BS) by applying power allocation mechanism for far and near users, in which one signal contains the superposition of two scaled signals depending on the distance of each user from the BS. We assume an additive white Gaussian noise (AWGN) channel for each user in the presence of the interference due to the non-orthogonality between the two users’ signals. Therefore, successive-interference cancellation (SIC) is exploited to remove the undesired signal of the other user. The outage probability and the bit-error rate performance are presented over different signal-to-interference-plus-noise ratio (SINR). Furthermore, Monte-Carlo simulations via Matlab are utilized to verify the results obtained by FPGA, which show exact-close match.

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“…In the previous works in this area, authors of [3] have investigated the performance of NOMA using a cooperative relay scheme (CRS) in the amplify‐and‐forward (AF) mode, in which the communication between two sources and their relevant destinations are conducted over the same frequency simultaneously via a shared AF relay. They first derived a mathematical expression then the analytical results is evaluated in the high signal‐to‐noise ratio (SNR) region.…”

Section: Introductionmentioning

confidence: 99%