Open AccessBook Chapter
Non-Orthogonal Multiple Access (NOMA) for cellular future radio access
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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.Abstract:
Radio access technologies for cellular mobile communications are typically characterized by multiple access schemes, e.g., frequency division multiple access (FDMA), time division multiple access (TDMA), code division multiple access (CDMA), and OFDMA. In the 4th generation (4G) mobile communication systems such as Long-Term Evolution (LTE) (Au et al., Uplink contention based SCMA for 5G radio access. Globecom Workshops (GC Wkshps), 2014. doi:10.1109/GLOCOMW.2014.7063547) and LTE-Advanced (Baracca et al., IEEE Trans. Commun., 2011. doi:10.1109/TCOMM.2011.121410.090252; Barry et al., Digital Communication, Kluwer, Dordrecht, 2004), standardized by the 3rd Generation Partnership Project (3GPP), orthogonal multiple access based on OFDMA or single carrier (SC)-FDMA is adopted. Orthogonal multiple access was a reasonable choice for achieving good system-level throughput performance with simple single-user detection. However, 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. In addition the proposed system should be able to support enhanced delay-sensitive high-volume services such as video streaming and cloud computing. Another high-level target of 5G is reduced cost, higher energy efficiency and robustness against emergencies.read more
Citations
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Performance Improvement of NOMA Scheme Based on Gain of Narrow and Wide Beams
Gangminh Lee,Dong-Ho Cho +1 more
TL;DR: This paper considers two power allocation schemes, namely the max and fair power allocation methods, and proposes a pairing algorithm to maximize the capacity by minimizing the interference between narrow and wide beam user.
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Big data aided aggregation coding multiple access for machine type communications
TL;DR: This paper proposed Aggregation Coding Multiple Access (ACMA) for MTC downlink transmissions, which exploits the inherent correlation among aggregated users in spatial domain to improve the spectrum efficiency.
Proceedings ArticleDOI
A Novel Transceiver Architecture for Highly Dispersive NOMA Channels
TL;DR: A new multiple access technique belonging to the class of non-orthogonal multiple access (NOMA) based on multi-code signaling (MCS) is proposed for the uplink data transmission mode in severe multi-path fading channels in order to handle the key challenges of 5G technology.
Proceedings ArticleDOI
Asynchronous detection for machine-to-machine systems with code division multiple access
TL;DR: The maximal logarithmic likelihood problem for asynchronous multiuser detection via joint channel gains, time delays and transmission symbols detection is formulated and an adaptive step-size method with low complexity is proposed to estimate time delays based on the estimated time delays of the past times.
Posted Content
Max-Min Fair Precoder Design for Non-Orthogonal Multiple Access
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TL;DR: Simulation results show that the proposed algorithm significantly outperfoms orthogonal multiple access (OMA) and multi-user linear precoding (MULP) schemes.
References
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Mansoor Shafi,Andreas F. Molisch,Peter J. Smith,Thomas Haustein,Peiying Zhu,Prasan De Silva,Fredrik Tufvesson,Anass Benjebbour,Gerhard Wunder +8 more
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The Application of MIMO to Non-Orthogonal Multiple Access
TL;DR: In this paper, a new design of precoding and detection matrices for MIMO-NOMA is proposed and its performance is analyzed for the case with a fixed set of power allocation coefficients.
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A Survey of In-Band Full-Duplex Transmission: From the Perspective of PHY and MAC Layers
TL;DR: This survey covers a wide array of technologies that have been proposed in the literature as feasible for IBFD transmission and evaluates the performance of the IBFD systems compared to conventional half-duplex transmission in connection with theoretical aspects such as the achievable sum rate, network capacity, system reliability, and so on.
Journal ArticleDOI
A General MIMO Framework for NOMA Downlink and Uplink Transmission Based on Signal Alignment
TL;DR: A novel MIMO-NOMA framework for downlink and uplink transmission is proposed by applying the concept of signal alignment and closed-form analytical results are developed to facilitate the performance evaluation of the proposed framework for randomly deployed users and interferers.
Journal ArticleDOI
On the Ergodic Capacity of MIMO NOMA Systems
TL;DR: This letter proposes both optimal and low complexity suboptimal power allocation schemes to maximize the ergodic capacity of MIMO NOMA system with total transmit power constraint and minimum rate constraint of the weak user.