Results 1 to 10 of about 1,671,268 (155)
Grant-Free NOMA: A Low-Complexity Power Control through User Clustering [PDF]
Sensors, 2023 Non-orthogonal multiple access (NOMA) has emerged as a promising solution to support multiple devices on the same network resources, improving spectral efficiency and enabling massive connectivity required by ever-increasing Internet of Things devices ...
Abdulkadir Celik
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On the Capacity of 5G NR Grant-Free Scheduling with Shared Radio Resources to Support Ultra-Reliable and Low-Latency Communications [PDF]
Sensors, 2019 5G and beyond networks are being designed to support the future digital society, where numerous sensors, machinery, vehicles and humans will be connected in the so-called Internet of Things (IoT). The support of time-critical verticals such as Industry 4.
M. Carmen Lucas-Estañ +2 more
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Analyzing Grant-Free Access for URLLC Service [PDF]
IEEE Journal on Selected Areas in Communications, 2021 Accepted in IEEE JSAC SI on MA for B5G IEEE JSAC SI on MASSIVE ACCESS FOR 5G AND ...
Yan Liu, Yansha Deng, Maged Elkashlan
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GFDM-Based Asynchronous Grant-Free Multiple-Access
IEEE Access, 2022 For next-generation Internet-of-Things (IoT) networks, asynchronous instant transmission has attracted increasing research interest with the expectation of achieving near-zero latency without excessive initiation procedure.
Yeongjun Kim +4 more
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Blind Device Detection via Extended Sparsity Estimation-OMP in Grant-Free NOMA-IoT [PDF]
SensorsGrant-free non-orthogonal multiple access (NOMA) enables communication without a scheduling process. Base station (BS) must detect active users without knowing their number, a challenge that also occurs in grant-free NOMA–Internet of Things (IoT). Device
Nur Andini +3 more
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Reliability Analysis of Uplink Grant-Free Transmission Over Shared Resources
IEEE Access, 2018 Uplink grant-free schemes have the promise of reducing the latency of a user-equipmentinitiated transmission by avoiding the handshaking procedure for acquiring a dedicated scheduling grant.
Gilberto Berardinelli +6 more
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Success Probability of Grant-Free Random Access With Massive MIMO [PDF]
IEEE Internet of Things Journal, 2019 Massive MIMO opens up new avenues for enabling highly efficient random access (RA) by offering abundance of spatial degrees of freedom. In this paper, we investigate the grant-free RA with massive MIMO and derive the analytic expressions of success probability of the grant-free RA for conjugate beamforming and zero-forcing beamforming techniques.With ...
Jie Ding, Daiming Qu, Hao Jiang
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On Secure NOMA-Aided Semi-Grant-Free Systems
IEEE Transactions on Wireless Communications37 pages, 8 ...
Hongjiang Lei +2 more
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Outage analysis of aerial semi-grant-free NOMA systems
Digital Communications and NetworksIn this paper, we analyze the outage performance of Unmanned Aerial Vehicles (UAVs)-enabled downlink Non-Orthogonal Multiple Access (NOMA) communication systems with the Semi-Grant-Free (SGF) transmission scheme.
Hongjiang Lei +6 more
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On Achieving High-Fidelity Grant-Free Non-Orthogonal Multiple Access
IEEE Open Journal of the Communications SocietyGrant-free access (GFA) has been envisioned to play an active role in massive Machine Type Communication (mMTC) under 5G and Beyond mobile systems, which targets at achieving significant reduction of signaling overhead and access latency in the presence ...
Haoran Mei, Limei Peng, Pin-Han Ho
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