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MUSA Grant-Free Access Framework and Blind Detection Receiver
2021
Journal of Communication and Information Systems
Preserved Fulltext
Index Terms-Grant-free access, blind multi-user detection, MUSA, NOMA, successively interference cancellation, mMTC, deep neural network. ...
Furthermore, MUSA introduces a grant-free transmission and a blind multi-user detection at the receiver, reducing the complexity on the transmit side. ...
These premises are incompatible with a grant-free multiple access with blind detection. ...
doi:10.14209/jcis.2021.13
fatcat:4pgwkbztyfczxjfq5qg6znhu7e
Blind Multi-user Detection for Autonomous Grant-free High-Overloading MA without Reference Signal
[article]
2017
arXiv
pre-print
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In this paper, a novel blind multi-user detection(MUD) framework for autonomous grant-free high-overloading non-orthogonal multiple access is introduced in detail aimed at fulfilling the requirements of ...
From the perspective of the transmitter side, pros and cons regarding diverse types of emerging grant-free transmission, particularly autonomous grant-free, are elaborated and presented in a comparative ...
Blind Multi-user Detection for Autonomous Grant-free High-Overloading MA without Reference Signal However, it is much less efficient for irregular traffic such as event-driven non-periodic traffic [8] ...
arXiv:1712.02601v1
fatcat:k36xoadu4fgatayqe6r2jaiybq
Grant-free Non-orthogonal Multiple Access for IoT: A Survey
[article]
2019
arXiv
pre-print
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To tackle this, grant-free access is needed, where mMTC devices can autonomously transmit their data over randomly chosen radio resources. ...
autonomous and grant-free communication, where devices can transmit data whenever they need. ...
device
MUD
Multi-user detection
MUSA
Multi-user shared access
M2M
Machine-to-machine
NCMA
Non-orthogonal coded multiple access
NOCA
Non-orthogonal coded access
NOMA
Non-orthogonal multiple ...
arXiv:1910.06529v1
fatcat:6ouywssbwjhm3nt5iz6px7h7oa
Blind Receive Beamforming for Autonomous Grant-Free High-Overloading Multiple Access
[article]
2018
arXiv
pre-print
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Although spatial combining has provided significant gains in conventional grant-based transmission, this technique is stuck in dilemma when it comes to autonomous grant-free transmission tailored for IoT ...
grant-free (AGF) transmission. ...
Revolutionary Autonomous Grant-Free (AGF) access [6] [7] [8] allowing UE transmission directly from idle state can extremely simplify the transmitter design and is tailored for IoT systems in mMTC and ...
arXiv:1805.07013v1
fatcat:auwceq3dbjhdhfpqzdxn3akgh4
Grant-Free Non-Orthogonal Multiple Access: A Key Enabler for 6G-IoT
[article]
2020
arXiv
pre-print
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We present novel and promising results for deep learning (DL)-based techniques for joint user detection and decoding. ...
In fact, grant-free access has been identified as a key medium access control technique for providing massive connectivity in machine type communications in cellular networks. ...
Grant-Free Non-Orthogonal Multiple Access NOMA allows multiple users to share the different resources, e.g., time, frequency, and space, either through power domain multiplexing or code domain multiplexing ...
arXiv:2003.10257v1
fatcat:owtfsqzvsjgqfacacriw5z24uu
Uplink Grant-Free Access Solutions for URLLC services in 5G New Radio
2019
2019 16th International Symposium on Wireless Communication Systems (ISWCS)
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Further gains are possible, e.g., by using more advanced joint multi-user detection algorithms and multiple receive antennas to separate the superimposed signals. ...
Grant-free (GF) random access, where the grant acquisition by the user prior to transmission is skipped, is proposed as a solution to reduce the access latency [4]. ...
This work has partly been performed in the framework of the Horizon 2020 project ONE-5G (ICT-760809) receiving funds from the European Union, and partly under the Academy of Finland 6Genesis Flagship (grant ...
doi:10.1109/iswcs.2019.8877253
dblp:conf/iswcs/MahmoodABSBJ19
fatcat:3ai5uh4smzeeljrykimtmmtmzy
Uplink Grant-Free Random Access Solutions for URLLC services in 5G New Radio
[article]
2019
arXiv
pre-print
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Grant-free random access, where channel resources are accessed without undergoing assignment through a handshake process, is proposed in 5G New Radio as an important latency reducing solution. ...
For example, the proposed non-orthogonal multiple access scheme can support a normalized load of more than 1.5 users/slot at packet loss rates of 10^-5 - a significant improvement over the maximum supported ...
This work has partly been performed in the framework of the Horizon 2020 project ONE-5G (ICT-760809) receiving funds from the European Union, and partly under the Academy of Finland 6Genesis Flagship (grant ...
arXiv:1904.05593v1
fatcat:l2h44khfivafjgp7u3hvk2fbla
Contention-based Grant-free Transmission with Extremely Sparse Orthogonal Pilot Scheme
[article]
2021
arXiv
pre-print
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The numerical results show that the proposed extremely sparse orthogonal pilot scheme significantly improves the performance in high-overloading grant-free scenario. ...
The proposed sparse pilot is used to perform active user detection and estimate the spatial channel. ...
Grant-free transmission allows UEs to transmit data payloads autonomously without the need to send scheduling request and wait for dynamic scheduling. ...
arXiv:2106.04172v1
fatcat:p6rj6j3adbb7tmdr3vfnt7tefm
A Tutorial on Decoding Techniques of Sparse Code Multiple Access
[article]
2022
arXiv
pre-print
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As an evolved variant of code division multiple access (CDMA), multiple users in SCMA are separated by assigning distinctive sparse codebooks (CBs). ...
Sparse Code Multiple Access (SCMA) is a disruptive code-domain non-orthogonal multiple access (NOMA) scheme to enable future massive machine-type communication networks. ...
In [137] , an acknowledgment feedback based user-to-CTU mapping was proposed for grant-free SCMA to decrease the collision probability. • SCMA for High Mobility Communications: With the rapid evolution ...
arXiv:2205.07456v1
fatcat:bws55xwqtjdnfb6hyvoynetv34
White Paper on Critical and Massive Machine Type Communication Towards 6G
[article]
2020
arXiv
pre-print
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- How to tackle a disruptive rather than incremental joint design of a massively scalable waveform and medium access policy for global MTC connectivity? ...
Impact on higher layers Impact on higher layers of grant-free When grant-free without any type of pre-assignment is employed, higher layers can be simplified without any connection state transition. ...
Physical Layer
Non-orthogonal PHY solutions State-of-the-art solutions for efficient grant-free access allow multiple devices to share the same physical time and frequency resource, relying on distinguishable ...
arXiv:2004.14146v2
fatcat:mekkaybbovghfnbqz5bbizceki
Enabling Technologies for Ultra-Reliable and Low Latency Communications: From PHY and MAC Layer Perspectives
2019
IEEE Communications Surveys and Tutorials
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The paper evaluates the relevant PHY and MAC techniques for their ability to improve the reliability and reduce the latency. ...
We provide a comprehensive discussion on physical (PHY) and medium access control (MAC) layer techniques that enable URLLC, addressing both licensed and unlicensed bands. ...
Grant-free NOMA [125] Huawei lab trial Grant-free sparse code multiple access can significantly reduce the transmission latency in heavy overloading scenarios. ...
doi:10.1109/comst.2019.2897800
fatcat:jgaahgi27rev3ieyrisn2yvh5m
6G for Vehicle-to-Everything (V2X) Communications: Enabling Technologies, Challenges, and Opportunities
[article]
2022
arXiv
pre-print
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We are on the cusp of a new era of connected autonomous vehicles with unprecedented user experiences, tremendously improved road safety and air quality, highly diverse transportation environments and use ...
Aiming for truly intelligent transportation systems, we envision that machine learning will play an instrumental role for advanced vehicular communication and networking. ...
for a multi-user and multi-cell system. ...
arXiv:2012.07753v2
fatcat:u5edqsewbzgthlkgc3nooqmdo4
A Survey on Handover Management: From LTE to NR
2019
IEEE Access
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, increased overheads due to frequent HO, high packet losses and bad user experience mostly in high-speed user equipment (UE) scenarios. ...
INDEX TERMS Radio access mobility, cell selection, handover, LTE, 5G, NR, mobility enhancers. ...
In this case, the UE receives a HO command to detect and access the target cell indicated in that command, without having received a measurement report from the UE [20] .
D. ...
doi:10.1109/access.2019.2937405
fatcat:6lz3fh267ja7fnwm6q5wdxhnju
Application of Reinforcement Learning and Deep Learning in Multiple-Input and Multiple-Output (MIMO) Systems
2021
Sensors
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., Multi-User MIMO and Massive MIMO) are the most promising 5G wireless communication systems technology due to their high system throughput and data rate. ...
Second, potential RL and DL applications for different MIMO issues, such as detection, classification, and compression; channel estimation; positioning, sensing, and localization; CSI acquisition and feedback ...
A BF algorithm based on online model-free RL approach SARSA is introduced in [73] to study the case of multi-target detection for a Ma-MIMO cognitive radar when the disturbance is unknown. ...
doi:10.3390/s22010309
pmid:35009848
pmcid:PMC8749942
fatcat:2w4th63dtrdyboa6rmhr5rcvja
Architecture and Protocol Support for Radio Resource Management (RRM)
[chapter]
2009
Internet and Communications
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The MME terminates the so called non-access stratum signaling protocols with the User Equipment (UE) and maintains the UE context such as the established Quality of Service of bearers, the security context ...
Thereby the radio access network is exhibiting a distributed architecture without a central radio resource control functionality. ...
As opposed to the pro-active scheme, the overload indication is a reactive scheme that indicates a high detected interference level on a specific resource block to neighbor eNode B(s). ...
doi:10.1201/9781420072112.ch4
fatcat:yirhn4faazhbtm3lekya2p7eve
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