Journal ArticleDOI
Full-Duplex Device-to-Device-Aided Cooperative Nonorthogonal Multiple Access
TLDR
This paper presents a full-duplex device-to-device (D2D)-aided cooperative nonorthogonal multiple access (NOMA) scheme to improve the outage performance of the NOMA-weak user in a N OMA user pair, where the Noma- weak user is helped by the NomA-strong user with the capability of full- duplex D2D communications.Abstract:
This paper presents a full-duplex device-to-device (D2D)-aided cooperative nonorthogonal multiple access (NOMA) scheme to improve the outage performance of the NOMA-weak user in a NOMA user pair, where the NOMA-weak user is helped by the NOMA-strong user with the capability of full-duplex D2D communications. The expressions for the outage probability are derived to characterize the performance of the proposed scheme. The results show that the proposed cooperative NOMA scheme can achieve superior outage performance compared to the conventional NOMA and orthogonal multiple access (OMA). In order to further improve the outage performance, an adaptive multiple access (AMA) scheme is also studied, which dynamically switches between the proposed cooperative NOMA, conventional NOMA, and OMA schemes, according to the level of residual self-interference and the quality of links. The results show that the AMA scheme outperforms the above multiple access schemes in terms of outage performance.read more
Citations
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Journal ArticleDOI
A Novel Resource Allocation Scheme in NOMA-Based Cellular Network with D2D Communications
Jingpu Wang,Xin Song,Yatao Ma +2 more
TL;DR: A new resource allocation algorithm in the NOMA-enhanced cellular network with device-to-device (D2D) communications is proposed, in which two new searching methods are used and an optimal link selection scheme is proposed to maximize the system throughput and limit the interferences of the N OMA-based cellular network.
Proceedings ArticleDOI
Performance of Cooperative NOMA System with a Full-Duplex Relay over Nakagami-m Fading Channels
TL;DR: This paper investigates the outage performance of a system combining techniques of non-orthogonal multiple access (NOMA) and full-duplex (FD) in cooperative communication over Nakagami-m fading channels and derives closed-form expressions for outage probability of two users.
Journal ArticleDOI
Enhancing Secrecy Performance of Cooperative NOMA-Based IoT Networks via Multiantenna-Aided Artificial Noise
TL;DR: In this article , the authors investigated the physical layer security of cooperative NOMA-based IoT networks and derived exact expressions of the security outage probability for both the IoT nodes under both single-antenna and multiantenna aided transmission scenarios.
Posted Content
Sub-channel and Power Allocation for Non-orthogonal Multiple Access Relay Networks with Amplify-and-Forward Protocol
TL;DR: In this article, the authors proposed two efficient many-to-many two-sided source-destination pair-subchannel matching algorithms in which the SD pairs and sub-channels are considered as two sets of players chasing their own interests.
Journal ArticleDOI
Performance analysis of power-splitting relaying protocol in SWIPT based cooperative NOMA systems
TL;DR: The simulation results show that the C-NOMA with direct link achieves an outperformed performance over C- NOMA without direct link, which is higher than that for OMA.
References
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Proceedings ArticleDOI
Achieving single channel, full duplex wireless communication
TL;DR: In this paper, a single channel full-duplex wireless transceiver is proposed, which uses a combination of RF and baseband techniques to achieve FD with minimal effect on link reliability.
Journal ArticleDOI
Cooperative Non-Orthogonal Multiple Access in 5G Systems
TL;DR: In this article, a cooperative NOMA scheme is proposed, where users with better channel conditions have prior information about the messages of other users, and an approach based on user pairing is also proposed to reduce system complexity.
Journal ArticleDOI
Device-to-device communication in 5G cellular networks: challenges, solutions, and future directions
TL;DR: An overview of major challenges in two-tier networks is provided and some pricing schemes for different types of device relaying are proposed.
Proceedings ArticleDOI
System-level performance evaluation of downlink non-orthogonal multiple access (NOMA)
TL;DR: It is shown under multiple configurations that the system-level performance achieved by NOMA is superior to that for OMA, and key link adaptation functionalities of the LTE radio interface such as adaptive modulation and coding, time/frequency-domain scheduling, and outer loop link adaptation are shown.
Journal ArticleDOI
Cooperative Non-Orthogonal Multiple Access with Simultaneous Wireless Information and Power Transfer
TL;DR: Analytical results demonstrate that the use of SWIPT will not jeopardize the diversity gain compared to the conventional NOMA and confirm that the opportunistic use of node locations for user selection can achieve low outage probability and deliver superior throughput in comparison to the random selection scheme.