Results 41 to 50 of about 2,806 (201)

Compressed spectrum sensing for grant-free NOMA based internet of vehicles

open access: yesEURASIP Journal on Advances in Signal Processing, 2022
With the development of communication technology, non-orthogonal multiple access (NOMA) technology is proposed to meet the requirements of high throughput and low latency in massive machine type communication (mMTC) of Internet of Vehicles (IoV).
Liang Zhang, Zengqi Li, Min Jia
doaj   +1 more source

Performance Analysis of Signature-Based Grant-Free Random Access Under Impersonation Attacks

open access: yesIEEE Access, 2022
In massive machine-type communications (mMTC), user-specific and non-orthogonal signatures can be assigned to wireless devices for uplink grant-free access.
Nam Yul Yu
doaj   +1 more source

Performance optimization for mMTC in 5G network with multiple random access schemes

open access: yes物联网学报, 2022
To optimize the support for massive machine type communication (mMTC) services with different traffic characteristics, packet-based random access (PBRA) scheme coexists with the connection-based random access (CBRA) scheme in 5G networks.Yet, given the ...
Wen ZHAN   +3 more
doaj   +2 more sources

Sequence Design and User Activity Detection for Uplink Grant-Free NOMA in mMTC Networks

open access: yesIEEE Open Journal of the Communications Society, 2021
Massive machine type communications (mMTC) is one of the three major scenarios in 5G wireless networks. mMTC is an uplink-dominant scenario that supports massive connectivity of small-size packets and sporadic traffic.
Nai-Hsuan Huang, Tzi-Dar Chiueh
doaj   +1 more source

Platform Gamifikasi untuk Perkuliahan

open access: yesIJCCS (Indonesian Journal of Computing and Cybernetics Systems), 2017
Gamification in lecturing has a lot of variety designs. A flexible platform is needed for that matter. This research aims to develop a gamification platform for lecturing that flexible, has a good performance and acceptable by users. Generic Gamification
David Kristiadi, Khabib Mustofa
doaj   +1 more source

NB-IoT and LTE-M towards massive MTC: Complete performance evaluation for 5G mMTC [PDF]

open access: yes, 2021
Since the emerging 5G wireless network is expected to significantly revolutionize the field of communication, its standardization and design should regard the internet of things (IoT) among the main orientations. Also, emerging IoT applications introduce
Abou El Hassan, Adil   +4 more
core   +1 more source

Improving Random Access with NOMA in mMTC XL-MIMO

open access: yes2023 IEEE 97th Vehicular Technology Conference (VTC2023-Spring), 2023
13 pages, 5 figures, 1 table, conference VTC 2023.
Thiago Augusto Bruza Alves   +1 more
openaire   +4 more sources

Sensing and Secure NOMA-Assisted mMTC Wireless Networks

open access: yes, 2023
Throughout this study, a novel network model for massive machine-type communications (mMTC) is proposed using a compressive sensing (CS) algorithm and a non-orthogonal multiple access (NOMA) scheme.
Samikkannu Rajkumar   +3 more
core   +1 more source

Subterranean mMTC in Remote Areas: Underground-to-Satellite Connectivity Approach

open access: yesIEEE Communications Magazine, 2023
Abstract Wireless underground sensor networks (WUSNs) promise to deliver substantial social and economic benefits across different verticals. However, many of the relevant application scenarios are located in remote areas with no supporting infrastructure available.
Kaiqiang Lin   +4 more
openaire   +3 more sources

The value of CEUS and SWE in differential diagnosis of carcinoma minute-medullary thyroid carcinoma and papillary thyroid microcarcinoma

open access: yes肿瘤影像学, 2022
Objective: To explore the value of contrast-enhanced ultrasound (CEUS), shear wave elastography (SWE) in differential diagnosis of minute-medullary thyroid carcinoma (MMTC) and papillary thyroid microcarcinoma (PTMC).
ZHAO Ling, MA Buyun
doaj  

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