Performance Analysis of Full-Duplex Relay-Aided NOMA Systems Using Partial Relay Selection

Tregancini, Anderson; Olivo, Edgar Eduardo Benítez; Osorio, Diana Pamela Moya; Lima, Carlos H. M. de; Alves, Hirley

doi:10.1109/tvt.2019.2952526

Cited by 52 publications

(36 citation statements)

References 33 publications

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“…Comparing the four group scenarios, this indicates that a higher transmission rate requirement for the center user would significantly decrease its utility, and the energy transfer efficiency would also significantly affect its utility. Value of contract type (20,30,40), δ = 45 • Value of contract type (20,30,40), δ = 60 • We set the center user transmission rate requirement as R min n and the energy conversion efficiency as η = 0.9 and η = 0.7, respectively. Figure 9 presents the BS utility (benefit) versus the edge user transmission rate requirement, comparing three groups using FD NOMA and SWIPT cooperative transmission with one group using conventional NOMA transmission in a complete channel state information scenario.…”

Section: Contract Type In Complete Channel Information Scenariomentioning

confidence: 99%

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Contract Theory-Based Incentive Mechanism for Full Duplex Cooperative NOMA with SWIPT Communication Networks

Zhang

Zhao

et al. 2021

Entropy

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Cooperative Non-Orthogonal Multiple Access (NOMA) with Simultaneous Wireless Information and Power Transfer (SWIPT) communication can not only effectively improve the spectrum efficiency and energy efficiency of wireless networks but also extend their coverage. An important design issue is to incentivize a full duplex (FD) relaying center user to participate in the cooperative process and achieve a win–win situation for both the base station (BS) and the center user. Some private information of the center users are hidden from the BS in the network. A contract theory-based incentive mechanism under this asymmetric information scenario is applied to incentivize the center user to join the cooperative communication to maximize the BS’s benefit utility and to guarantee the center user’s expected payoff. In this work, we propose a matching theory-based Gale–Shapley algorithm to obtain the optimal strategy with low computation complexity in the multi-user pairing scenario. Simulation results indicate that the network performance of the proposed FD cooperative NOMA and SWIPT communication is much better than the conventional NOMA communication, and the benefit utility of the BS with the stable match strategy is nearly close to the multi-user pairing scenario with complete channel state information (CSI), while the center users get the satisfied expected payoffs.

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Section: Contract Type In Complete Channel Information Scenariomentioning

confidence: 99%

“…

is the transmit power for relaying a transmission to the edge user m .

is the time delay for the relaying center user caused by FD operation, which can be negligible owing to the

being far smaller than the time slot T [ 29 , 30 ].…”

Section: System Modelmentioning

confidence: 99%

Contract Theory-Based Incentive Mechanism for Full Duplex Cooperative NOMA with SWIPT Communication Networks

Zhang

Zhao

et al. 2021

Entropy

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“…Moreover, the use of at least two relays results in the formation of successive relaying (SuR) mimicking FD operation and introducing inter-relay interference (IRI). At the same time, FD NOMA in the power domain allows the concurrent transmission to/from more than one users and reception of the source's signal by the same relay by appropriately allocating the available power to the different user signals exploiting their rate and channel asymmetries [3]- [5]. However, the performance of wireless networks integrating FD relaying, NOMA, and SuR is compromised due to the inherent presence of interference and the inability to completely eliminate or significantly reduce it with existing techniques.…”

Section: Introductionmentioning

confidence: 99%

When Buffer-Aided Relaying Meets Full Duplex and NOMA

Νομικός

Charalambous

Vouyioukas

et al. 2021

IEEE Wireless Commun.

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Full-duplex (FD) systems are able to transmit and receive signals over the same frequency band simultaneously with the potential of even doubling the spectral efficiency in comparison with the traditional half-duplex (HD) systems. When combined with relaying, FD systems are expected to dramatically increase the throughput of future wireless networks. However, the degrading effect of self-interference (SI) due to the simultaneous transmission and reception at the relay threatens their efficient roll-out in real-world topologies. At the same time, nonorthogonal multiple access (NOMA) can further increase the spectral efficiency of the network. In this article, we present how buffering at the relays can be integrated with FD and NOMA in order to improve the performance of relay networks. More specifically, the key points for the successful integration of buffer-aided relays with spatial sharing paradigms are presented and details on buffer state information-based relay selection and its fully distributed implementation are discussed. Furthermore, a mathematical framework for the analysis of FD and HD buffer-aided relay networks is rigorously discussed. Performance evaluation shows the importance of data buffering towards mitigating SI and improving the sum-rate of the network. Finally, the goal of this work is both to summarize the current stateof-the-art and, by calling attention to open problems, to spark interest towards targeting these and related problems in relay networks.

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“…The advances in interference cancelation technique was not only the key behind the significant research progress on NOMA, but also for considering Full-duplex (FD) technology as one of the promising techniques for 5G and beyond systems proved to potentially double the spectral efficiency compared to the conventional Half-duplex communications. The integration of NOMA and FD technology was studied in [14][15][16][17][18] showing significant improvement in spectral efficiency compared to conventional wireless communications based on HD mode and OMA schemes.…”

Section: Introductionmentioning

confidence: 99%

Secrecy Performance Analysis of Half/Full Duplex AF/DF Relaying in NOMA Systems Over κ - μ Fading Channels

Zaghdoud¹,

Mnaouer

Boujemâa³

et al. 2021

Preprint

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Although the progress in understanding 5G and beyond techniques such as Non-Orthogonal Multiple Access (NOMA) and full-duplex techniques has been overwhelming, still analyzing the security aspects of such systems under different scenarios and settings is an important concern that needs further exploration. In particular, when considering fading in wiretap channels and scenarios, achieving secrecy has posed many challenges. In this context, we propose to study the physical layer security (PLS) of cooperative NOMA (C-NOMA) system using the general fading distribution κ - μ. This distribution facilitates mainly the effect of light-of-sight as well as multipath fading. It also includes multiple distributions as special cases like: Rayleigh, Rice, Nakagami-m which help to understand the comportment of C-NOMA systems under different fading parameters. The use of Half-Duplex and Full-Duplex communication is also investigated for both Amplify-and-forward (AF) and Decode-and-Forward (DF) relaying protocols. To characterize the secrecy performance of the proposed C-NOMA systems, closed form expressions of the Secrecy Outage Probability (SOP) and the Strictly Positive Secrcey Capacity (SPSC) metrics for the strong and weak users are given for high signal-to-noise ratio (SNR) due to the intractable nature of the exact expressions. Based on the analytical analysis, numerical and simulation results are given under different network parameters.

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Performance Analysis of Full-Duplex Relay-Aided NOMA Systems Using Partial Relay Selection

Cited by 52 publications

References 33 publications

Contract Theory-Based Incentive Mechanism for Full Duplex Cooperative NOMA with SWIPT Communication Networks

Contract Theory-Based Incentive Mechanism for Full Duplex Cooperative NOMA with SWIPT Communication Networks

When Buffer-Aided Relaying Meets Full Duplex and NOMA

Secrecy Performance Analysis of Half/Full Duplex AF/DF Relaying in NOMA Systems Over κ - μ Fading Channels

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