Journal ArticleDOI
Novel Receiver Design for the Cooperative Relaying System With Non-Orthogonal Multiple Access
Reads0
Chats0
TLDR
In this letter, a novel detection scheme for the cooperative relaying system using non-orthogonal multiple access (CRS-NOMA) is proposed and the advantages of the proposed scheme are revealed.Abstract:
In this letter, a novel detection scheme for the cooperative relaying system using non-orthogonal multiple access (CRS-NOMA) is proposed. For CRS-NOMA, the source simultaneously transmits two symbols by employing the superposition code, and the relay decodes and forwards the symbol with lower allocated power by employing the successive interference cancellation (SIC). In the proposed scheme, the destination jointly decodes two symbols from both the directed signal and the forwarded signal by employing the maximum-ratio combination and another SIC. The ergodic sum rate and the outage performance of the system are investigated. A suboptimal allocation strategy is also designed. Both analysis and simulations reveal the advantages of the proposed scheme.read more
Citations
More filters
Journal ArticleDOI
A Survey on Non-Orthogonal Multiple Access for 5G Networks: Research Challenges and Future Trends
Zhiguo Ding,Xianfu Lei,George K. Karagiannidis,Robert Schober,Jinhong Yuan,Vijay K. Bhargava +5 more
TL;DR: In this paper, the authors provide an overview of the latest NOMA research and innovations as well as their applications in 5G wireless networks and discuss future challenges and future research challenges.
Posted Content
A Survey on Non-Orthogonal Multiple Access for 5G Networks: Research Challenges and Future Trends
Zhiguo Ding,Xianfu Lei,George K. Karagiannidis,Robert Schober,Jinhong Yuan,Vijay K. Bhargava +5 more
TL;DR: In this paper, the authors provide an overview of the latest NOMA research and innovations as well as their applications in 5G wireless networks and discuss future research challenges regarding 5G and beyond.
Book Chapter
Non-Orthogonal Multiple Access (NOMA) for cellular future radio access
TL;DR: Considering the trend in 5G, achieving significant gains in capacity and system throughput performance is a high priority requirement in view of the recent exponential increase in the volume of mobile traffic and the proposed system should be able to support enhanced delay-sensitive high-volume services.
Journal ArticleDOI
Performance Analysis and Optimization in Downlink NOMA Systems With Cooperative Full-Duplex Relaying
TL;DR: This work analytically derives the outage probability and ergodic sum rate with closed-form expressions when the power allocations at the BS and relay (or the near user) are fixed and obtains the optimal power allocations with Closed-Form expressions to maximize the minimum achievable rate of users.
Journal ArticleDOI
Design of Cooperative Non-Orthogonal Multicast Cognitive Multiple Access for 5G Systems: User Scheduling and Performance Analysis
TL;DR: Simulation results demonstrate significant performance gains are obtained for both networks, thanks to the use of the proposed cooperative MCR-NOMA scheme, and it is demonstrated that higher spatial diversity order can be achieved by opportunistically utilizing the CSI available for the secondary user scheduling.
References
More filters
Proceedings ArticleDOI
Non-Orthogonal Multiple Access (NOMA) for Cellular Future Radio Access
TL;DR: It is shown that the downlink NOMA with SIC improves both the capacity and cell-edge user throughput performance irrespective of the availability of the frequency-selective channel quality indicator (CQI) on the base station side.
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.
Book Chapter
Non-Orthogonal Multiple Access (NOMA) for cellular future radio access
TL;DR: Considering the trend in 5G, achieving significant gains in capacity and system throughput performance is a high priority requirement in view of the recent exponential increase in the volume of mobile traffic and the proposed system should be able to support enhanced delay-sensitive high-volume services.
Journal ArticleDOI
Capacity Analysis of Cooperative Relaying Systems Using Non-Orthogonal Multiple Access
Jung-Bin Kim,In-Ho Lee +1 more
TL;DR: The achievable average rate of the proposed cooperative relaying system using non-orthogonal multiple access (NOMA) to improve the spectral efficiency is analyzed for independent Rayleigh fading channels, and its asymptotic expression is provided.
Proceedings ArticleDOI
On capacity of Gaussian 'cheap' relay channel
TL;DR: The capacity of the Gaussian degraded 'cheap' relay channel is derived, consisting of nodes using 'Cheap' radios operating in TDD mode when transmitting and sending in the same frequency band.