Proceedings ArticleDOI
Performance and design of SIC receiver for downlink NOMA with open-loop SU-MIMO
Keisuke Saito,Anass Benjebbour,Yoshihisa Kishiyama,Yukihiko Okumura,Takehiro Nakamura +4 more
- pp 1161-1165
Reads0
Chats0
TLDR
This paper investigates the performance and design of successive interference cancellation (SIC) receiver for downlink non-orthogonal multiple access (NOMA) combined with 2-by-2 open-loop single-user (SU)-MIMO and compares the performance of different SIC receivers; specifically, codeword level SIC (CWIC), symbol level S IC (SLIC), and ideal SIC.Abstract:
This paper investigates the performance and design of successive interference cancellation (SIC) receiver for downlink non-orthogonal multiple access (NOMA) combined with 2-by-2 open-loop single-user (SU)-MIMO. Compared to NOMA with 1-by-2 SIMO (Single Input Multiple Output), for NOMA with 2-by-2 SU-MIMO we have to deal with both inter-user and interstream interference at the receiver of each user. Therefore, we introduce different weight generation schemes for both before SIC and after SIC according to the transmission rank combination between the user equipment (UEs), while taking into account inter-user interference. In addition, we compare the performance of different SIC receivers; specifically, codeword level SIC (CWIC), symbol level SIC (SLIC), and ideal SIC. Assuming LTE (Long Term Evolution) Transmission Mode 3 (TM3), link-level simulations are conducted under different allocated transmit powers, rank combinations, and modulation and coding schemes (MCS). The link-level simulation results showed that the CWIC receiver achieves higher performance compared to SLIC and achieves almost the same performance compared to ideal SIC when the power ratio of cell-center UE is below 0.35, and the MCS of cell-center UE and cell-edge UE are 16QAM (R = 0.49) and QPSK (R = 0.49), respectively.read more
Citations
More filters
Journal ArticleDOI
Power-Domain Non-Orthogonal Multiple Access (NOMA) in 5G Systems: Potentials and Challenges
TL;DR: This paper comprehensively surveys the recent progress of NOMA in 5G systems, reviewing the state-of-the-art capacity analysis, power allocation strategies, user fairness, and user-pairing schemes in NomA.
Journal ArticleDOI
Power-Domain Non-Orthogonal Multiple Access (NOMA) in 5G Systems: Potentials and Challenges
TL;DR: In this paper, the authors comprehensively survey the recent progress of NOMA in 5G systems, reviewing the state-of-the-art capacity analysis, power allocation strategies, user fairness, and user-pairing schemes in NOMAs.
Journal ArticleDOI
A Survey of Non-Orthogonal Multiple Access for 5G
TL;DR: A comprehensive survey of the original birth, the most recent development, and the future research directions of non-orthogonal multiple access, along with a range of challenging open problems that should be solved for NOMA.
Journal ArticleDOI
User pairing schemes for capacity maximization in non‐orthogonal multiple access systems
TL;DR: Simulations have been performed to investigate the performance of proposed schemes for both perfect and imperfect SIC receiver scenarios in comparison with conventional pairing where the mid users are kept paired with each other and results show that proposed schemes achieve high capacity gains.
Journal ArticleDOI
Exploiting Multiple-Antenna Techniques for Non-Orthogonal Multiple Access
TL;DR: A new framework for multiple-antenna NOMA is designed, including user clustering, channel state information (CSI) acquisition, superposition coding, transmit beamforming, and successive interference cancellation, and a low-complexity joint optimization scheme is proposed so as to fully exploit the potential of multiple- Antenna techniques in NomA.
References
More filters
Book
LTE - The UMTS Long Term Evolution: From Theory to Practice
TL;DR: Scrase et al. as discussed by the authors provide a comprehensive system-level understanding of LTE, built on explanations of the theories which underlie it, and provide a broad, balanced and reliable perspective on this important technology Lucid yet thorough, the book devotes particular effort to explaining the theoretical concepts in an accessible way.
Book
4G: LTE/LTE-Advanced for Mobile Broadband
TL;DR: In this article, the authors focus on LTE with full updates including LTE-Advanced to provide a complete picture of the LTE system, including the physical layer, access procedures, broadcast, relaying, spectrum and RF characteristics, and system performance.
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.
Proceedings ArticleDOI
System-level performance of downlink NOMA for future LTE enhancements
TL;DR: It is shown that for both wideband and subband scheduling and both low and high mobility scenarios, NOMA can still provide a hefty portion of its expected gains even with error propagation, and also when the proposed simplified user grouping and power allocation are used.
Proceedings ArticleDOI
Performance of non-orthogonal access with SIC in cellular downlink using proportional fair-based resource allocation
TL;DR: This paper investigates the system-level throughput of non-orthogonal access with a successive interference canceller (SIC) in the cellular downlink assuming proportional fair (PF)-based radio resource (bandwidth and transmission power) allocation and proposes and compares three power allocation strategies among users.