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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Proceedings ArticleDOI
Resource Allocation for Device-to-device Aided Cooperative NOMA with Imperfect CSI
TL;DR: This paper analyzes the performance of DC-NOMA with imperfect channel state information (CSI) and formulates a joint relay selection and power allocation problem aiming at maximizing the system sum rate.
Journal ArticleDOI
Optimizing Age of Information in Adaptive NOMA/OMA/Cooperative-SWIPT-NOMA System
TL;DR: In this article , the authors studied the information freshness of short-packet communication in wireless networks, where a base station (BS) sends time-sensitive status updates to users via adaptive multiple access technology.
Journal ArticleDOI
A Reciprocal-Selection-Based ‘Win–Win’ Overlay Spectrum-Sharing Scheme for Device-to-Device-Enabled Cellular Network
Peng Li,Shu Chenchen,Jiao Feng +2 more
TL;DR: The simulation results show that the proposed reciprocal-selection-based ‘Win–Win’ overlay spectrum-sharing scheme is capable of providing considerable rate improvements for both EUs and D2D pairs and reducing transmit power dissipated by the D1D transmitter to forward data for the EU compared with the existing methods.
Proceedings ArticleDOI
Efficient Transmission in Multi-user Relay Networks with Node Clustering and Network Coding
TL;DR: An efficient transmission strategy that combines network coding and non-orthogonal transmission techniques to balance the achievability of spatial diversity and channel utilization is considered.
Book ChapterDOI
Full-Duplex Non-Orthogonal Multiple Access Systems
TL;DR: This chapter investigates the joint performance of full-duplex and NOMA when applied in multiple antenna systems, systems based on the antenna selection and relaying systems based upon the cognitive radio principle, and investigates the integration of full/far user information rate region in cognitive relay systems.
References
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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.