Results 31 to 40 of about 7,544 (187)

Interference-Aware Subcarrier Allocation for Massive Machine-Type Communication in 5G-Enabled Internet of Things

open access: yesSensors, 2019
Massive machine-type communication (mMTC) is investigated as one of three typical scenes of the 5th-generation (5G) network. In this paper, we propose a 5G-enabled internet of things (IoT) in which some enhanced mobile broadband devices transmit video ...
Wenjun Hou   +5 more
doaj   +1 more source

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

Massive machine-type communication (mMTC) access with integrated authentication [PDF]

open access: yes2017 IEEE International Conference on Communications (ICC), 2017
We present a connection establishment protocol with integrated authentication, suited for Massive Machine-Type Communications (mMTC). The protocol is contention-based and its main feature is that a device contends with a unique signature that also enables the authentication of the device towards the network. The signatures are inspired by Bloom filters
Pratas, Nuno K.   +3 more
openaire   +2 more sources

Multi-service Signal Multiplexing and Isolation for Physical-Layer Network Slicing (PNS) [PDF]

open access: yes, 2017
Network slicing has been identified as one of the most important features for 5G and beyond to enable operators to utilize networks on an as-a-service basis and meet the wide range of use cases.
Ijaz, Ayesha   +4 more
core   +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

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

Efficient Massive Machine Type Communication (mMTC) via AMP

open access: yesIEEE Wireless Communications Letters, 2023
We propose efficient and low-complexity multiuser detection (MUD) algorithms for Gaussian multiple access channel (G-MAC) for short-packet transmission in massive machine type communications. To do so, we first formulate the G-MAC MUD problem as a sparse signal recovery problem and obtain the exact and approximate joint prior distribution of the sparse
Mostafa Mohammadkarimi, Masoud Ardakani
openaire   +4 more sources

Non-Orthogonal Contention-Based Access for URLLC Devices with Frequency Diversity [PDF]

open access: yes, 2019
We study coded multichannel random access schemes for ultra-reliable low-latency uplink transmissions. We concentrate on non-orthogonal access in the frequency domain, where users transmit over multiple orthogonal subchannels and inter-user collisions ...
Boyd, Christopher   +3 more
core   +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

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