Results 31 to 40 of about 324,548 (250)
Spatio-temporal Modeling for Massive and Sporadic Access [PDF]
IEEE Journal on Selected Areas in Communications, 2021 IEEE Journal on Selected Areas in Communications, accepted to ...
Yi Zhong 0001 +3 more
openaire +2 more sources
Adaptive channel status based access class barring scheme for traffic emergency communication
Dianxin kexue, 2022 In high-density cellular vehicle-to-everything (C-V2X), effective massive access method of cluster communications is the basis to assure the performance index for different services and enhance the spectrum efficiency under limited resource.An improved ...
Jiao WANG, Gongan QIU, Shibing ZHANG
doaj
Detection Techniques for Massive Machine-Type Communications: Challenges and Solutions
IEEE Access, 2020 Massive machine-type communications (mMTC) is one of the key application scenarios of fifth generation (5G) and beyond cellular networks. Bringing the unique technical challenge of supporting a huge number of MTC devices (MTCD) in cellular networks, how ...
Roberto B. Di Renna +3 more
doaj +1 more source
Rateless Multiple Access: Asymptotic Throughput Analysis and Improvement With Spatial Coupling
IEEE Access, 2018 A novel random code-domain non-orthogonal multiple access (NOMA) framework, rateless multiple access (RMA), is studied in this paper. In RMA, instead of granting each user specific radio resources in a fixed and centralized manner, the access point ...
Zhaoyang Zhang +3 more
doaj +1 more source
High-Speed Railway, 2023 The current High-Speed Railway (HSR) communications increasingly fail to satisfy the massive access services of numerous user equipment brought by the increasing number of people traveling by HSRs.
Anwen Liao +7 more
doaj +1 more source
NOMA-Based Random Access in mMTC XL-MIMO
IEEE Access, 2023 In machine-type communication (MTC), massive access attempts are generated and the massive MIMO is the key technology to support this demand. To support massive MTC (mMTC), the recent extra-large scale massive multiple-input multiple-output (XL-MIMO ...
Thiago Augusto Bruza Alves, Taufik Abrao
doaj +1 more source
A Hybrid-Grant Random Access Scheme in Massive MIMO Systems for IoT
IEEE Access, 2020 The grant-free random access (RA) can minimize the access delay but also brings severe data transmission interferences. To overcome this defect, we propose a new RA scheme that inserts a base station (BS) broadcasting message after user equipments (UEs ...
Qi Zhang, Shi Jin, Hongbo Zhu
doaj +1 more source
Massive access technology in 6G cellular Internet of things network
物联网学报, 2020 To realize Internet of everything (IoE),the 6G cellular Internet of things (IoT) network need to provide wireless access with low power,massive connectivity and wide coverage.Through the analysis and research on the massive access technology in 6G ...
Feiyan TIAN +3 more
doaj +2 more sources
Scheduling Versus Contention for Massive Random Access in Massive MIMO Systems
IEEE Transactions on Communications, 2022 14 pages, 10 figures.
Justin Kang, Wei Yu 0001
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Mitigating the Massive Access Problem in the Internet of Things
, 2022 AbstractThe traffic from the large number of IoT devices connected to the IoT is a source of congestion known as the Massive Access Problem (MAP), that results in packet losses, delays and missed deadlines for real-time data. This paper reviews the literature on MAP and summarizes recent results on two approaches that have been designed to mitigate MAP.
Erol Gelenbe +3 more
openaire +4 more sources