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Blind Receive Beamforming for Autonomous Grant-Free High-Overloading Multiple Access
[article]
2018
arXiv
pre-print
Preserved Fulltext
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 ...
Blind spatial combining could be interpreted as blind receive beamforming heuristically. ...
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 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
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. ...
Also, a blind detection and compressive sensing based receiver was proposed in [136] for performing the joint activity and data detection. ...
arXiv:2205.07456v1
fatcat:bws55xwqtjdnfb6hyvoynetv34
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
Machine Learning for Physical Layer in 5G and beyond Wireless Networks: A Survey
2021
Electronics
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Fifth-generation networks potentially merge multiple networks on a single platform, providing a landscape for seamless connectivity, particularly for high-mobility devices. ...
In this context, we provide a comprehensive survey on 5G technologies that emphasize machine learning-based solutions to cope with existing and future challenges. ...
Multiple antenna techniques were analyzed for the multi-user, dual-hop, heterogeneous, and point-to-point schemes. ...
doi:10.3390/electronics11010121
fatcat:ho7yyefbm5gf3bz3t2h3cxqtjq
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. ...
This article focuses on RL and DL techniques for MIMO systems by presenting a comprehensive review on the integration between the two areas. ...
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
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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We provide a comprehensive discussion on physical (PHY) and medium access control (MAC) layer techniques that enable URLLC, addressing both licensed and unlicensed bands. ...
The paper evaluates the relevant PHY and MAC techniques for their ability to improve the reliability and reduce the latency. ...
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
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? ...
- What are the key enablers towards designing ultra-low power receivers and highly efficient sleep modes? ...
The case of multi-antenna receiver can use beamforming to receive multiple copies of the direct path signal separately and compensate for the phase variations as in passive radar receivers. ...
arXiv:2004.14146v2
fatcat:mekkaybbovghfnbqz5bbizceki
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. ...
A detailed literature survey on radio access mobility in LTE, heterogeneous networks (HetNets) and NR is provided. ...
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
Cognitive Radio for Smart Grids: Survey of Architectures, Spectrum Sensing Mechanisms, and Networking Protocols
2016
IEEE Communications Surveys and Tutorials
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We also provide a survey on CR-based routing and MAC protocols, and describe interference mitigation schemes. ...
SGs feature multi-way communication among energy generation, transmission, distribution, and usage facilities. ...
The proposed detector outperforms other blind detectors under −20 dB SNR at the expense of a small amount of overhead for feature extraction [212] .
2) Feature Detection-Based On-Demand Sensing in AMI ...
doi:10.1109/comst.2015.2481722
fatcat:rnchxiumhndqho5tlumonfdoxi
A Survey on beyond 5G network with the advent of 6G: Architecture and Emerging Technologies
2020
IEEE Access
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For enabling these diverse services, a virtualized network slicing based architecture of 6G is proposed. Various ongoing projects on 6G and its technologies are also listed in this paper. ...
For meeting the targets of 5G NR, multiple features like scalable numerology, flexible spectrum, forward compatibility, and ultra-lean design are added as compared to the LTE systems. ...
In [83] , a Rank based access technique is used for providing access to the user based on mobility. ...
doi:10.1109/access.2020.3031234
fatcat:nt7ypjjpqvd4jdl5lvqkpcwnzm
Hybrid LiFi and WiFi Networks: A Survey
[article]
2020
arXiv
pre-print
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In this paper, we present a survey-style introduction to HLWNets, starting with a framework including the network structure, cell deployment, multiple access schemes, modulation techniques, illumination ...
This type of network combines the high-speed data transmission of LiFi and the ubiquitous coverage of WiFi. ...
Furthermore, LiFi-based IPS can readily detect the device's orientation via angle diversity receivers [196] , whereas it is difficult for IPS based on RF. ...
arXiv:2001.04840v1
fatcat:i2qujwybafesjeb3a27nd3tbrm
A Survey on Non-Geostationary Satellite Systems: The Communication Perspective
[article]
2021
arXiv
pre-print
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, resource management problems, and user equipment requirements. ...
and radio access technologies along with the networking aspects and the overall system features and architectures. ...
and seamless accessibility in works based on different space platforms including GSO and
NGSO systems will require employing multi-user detection NGSO satellites, and airships ...
arXiv:2107.05312v2
fatcat:dqov3icnibfdrhzxfwkhsykfcq
Next generation IEEE 802.11 Wireless Local Area Networks: Current status, future directions and open challenges
2016
Computer Communications
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We then review the most relevant amendments for each of these use cases focusing on the additional functionalities and the new technologies they include, such as multi-user MIMO techniques, groupcast communications ...
new generation of Wireless Local Area Networks (WLANs) will make its appearance in the market in the forthcoming years based on the amendments to the IEEE 802.11 standards that have recently been approved ...
Acknowledgements We would like to thank the anonymous reviewers for their insightful comments on the paper, as these comments led us to an improvement of the work. ...
doi:10.1016/j.comcom.2015.10.007
fatcat:fqyw73iqbbfmvcpyawnkfkakt4
Mission-Critical Machine-Type Communications: An Overview and Perspectives towards 5G
2019
IEEE Access
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This paper presents an extensive review and evaluations to highlight diverse challenges and future aspects of mcMTC on 5G-enabling technologies. ...
A number of research opportunities from both academic communities and industrial partners are given as examples for encouragement purposes. ...
In addition, SCMA uses blind detection technique; therefore, it can be considered as an enabler for grant-free multiple access which can effectively terminates the latency and signaling in the request-grant ...
doi:10.1109/access.2019.2894263
fatcat:5ru64ikomra2hnowb7skdb7zme
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