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MUSA Grant-Free Access Framework and Blind Detection Receiver

Guilherme Aquino, Tiago Barbosa, Marwa Chafii, Luciano Mendes, Abdul Abdul
2021 Journal of Communication and Information Systems  
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

Grant-free Non-orthogonal Multiple Access for IoT: A Survey [article]

Muhammad Basit Shahab, Rana Abbas, Mahyar Shirvanimoghaddam, Sarah J. Johnson
2019 arXiv   pre-print
autonomous and grant-free communication, where devices can transmit data whenever they need.  ...  In this context, non-orthogonal multiple access (NOMA) has emerged as a potential technology that allows overlapping of multiple users over a radio resource, thereby creating an opportunity to enable more  ...  This blind detection is crucial to the performance of grant-free UL communication.  ... 
arXiv:1910.06529v1 fatcat:6ouywssbwjhm3nt5iz6px7h7oa

Deep Neural Network-Based Blind Multiple User Detection for Grant-free Multi-User Shared Access [article]

Thushan Sivalingam, Samad Ali, Nurul Huda Mahmood, Nandana Rajatheva, Matti Latva-Aho
2021 arXiv   pre-print
In this paper, we propose a novel deep neural network (DNN)-based multiple user detection (MUD) for grant-free MUSA systems.  ...  The thoroughly learned DNN model is capable of distinguishing the active devices of the received signal without any a priori knowledge of the device sparsity level and the channel state information.  ...  Furthermore, the authors in [10] proposed MUD without the reference signal at the BS for MUSA. First, the spreading codes used by the active users are estimated by an iterative algorithm.  ... 
arXiv:2106.11204v1 fatcat:hod2frjuxrc37d4zahynsmwyhi

Blind Multi-user Detection for Autonomous Grant-free High-Overloading MA without Reference Signal [article]

Zhifeng Yuan, Yuzhou Hu, Weimin Li, Jianqiang Dai
2017 arXiv   pre-print
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  ...  In addition, underpinning state-of-art blind ideas such as blind activation detection taking advantage of the statistical metric of the aggregate signals, blind equalization based on the constellation's  ...  To this end, a highly efficient blind multiple user detection(MUD) for AGF multiple access without any reference signal is described and evaluated given the MUSA sequence listed in Appendix A.  ... 
arXiv:1712.02601v1 fatcat:k36xoadu4fgatayqe6r2jaiybq

Blind Receive Beamforming for Autonomous Grant-Free High-Overloading Multiple Access [article]

Zhifeng Yuan, Weimin Li, Yuzhou Hu, Xun Yang, Hong Tang, Jianqiang Dai
2018 arXiv   pre-print
grant-free (AGF) transmission.  ...  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  ...  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

Performance Comparison of Massive MIMO System with Orthogonal and Nonorthogonal Multiple Access for Uplink in 5G Systems

Madalina-Georgiana Berceanu, Carmen Florea, Simona Halunga
2020 Applied Sciences  
This paper presents two new sets of complex codes— multiple-user shared-access (MUSA) and extended MUSA (EMUSA), and an algorithm of allocation such that the intercorrelation should be as reduced as possible  ...  that can be used in MUSA for 5G NOMA-based technique scheme.  ...  The system with one antenna at the transmitter and one antenna at the receiver was taken into consideration, and a blind multiuser detection (MUD) without reference signal was used at the receiver.  ... 
doi:10.3390/app10207139 fatcat:q27wugrihfgwrlue2wiyh55izm

A Survey of Non-Orthogonal Multiple Access for 5G

Linglong Dai, Bichai Wang, Zhiguo Ding, Zhaocheng Wang, Sheng Chen, Lajos Hanzo
2018 IEEE Communications Surveys and Tutorials  
In contrast to the family of conventional orthogonal multiple access (OMA) schemes, the key distinguishing feature of NOMA is to support a higher number of users than the number of orthogonal resource  ...  This may be realized by the sophisticated inter-user interference cancellation at the cost of an increased receiver complexity.  ...  In this scheme, the desired signal of the cell center user can be directly detected without detecting the signal of the cell edge user, i.e., without SIC processing.  ... 
doi:10.1109/comst.2018.2835558 fatcat:ycxmkfe3rjet7eikctqijc554m

Signature-based Non-orthogonal Multiple Access (S-NOMA) for Massive Machine-Type Communications in 5G [article]

Mostafa Mohammadkarimi, Muhammad Ahmad Raza, Octavia A. Dobre
2018 arXiv   pre-print
Additionally, we present the detection algorithms employed to decode each device's data from non-orthogonally superimposed signals at the receiver.  ...  In this article, we provide a comprehensive review of the signature-based NOMA (S-NOMA) schemes as potential candidates for IoT.  ...  Grant-free S-NOMA In grant-free S-NOMA, each active device directly transmits its packets to the base station (BS) without waiting for any permission.  ... 
arXiv:1808.07163v1 fatcat:ekilp5nu6ncupgwlbsk72eijfa

Design of Non-Orthogonal Sequences Using a Two-Stage Genetic Algorithm for Grant-Free Massive Connectivity [article]

Nam Yul Yu
2021 arXiv   pre-print
In massive machine-type communications (mMTC), grant-free access is a key enabler for a massive number of users to be connected to a base station with low signaling overhead and low latency.  ...  In this paper, a two-stage genetic algorithm (GA) is proposed to design a new set of user-specific, non-orthogonal, unimodular sequences for uplink grant-free access.  ...  detection in uplink grant-free access.  ... 
arXiv:2108.00361v1 fatcat:zpejenzjovenbccgcsuk24jhou

Clustering-based Joint Channel Estimation and Signal Detection for NOMA [article]

Ayoob Salari, Mahyar Shirvanimoghaddam, Muhammad Basit Shahab, Reza Arablouei, Sarah Johnson
2022 arXiv   pre-print
We propose a joint channel estimation and signal detection approach for the uplink non-orthogonal multiple access using unsupervised machine learning.  ...  We show that, when the received powers of the users are sufficiently different, the proposed clustering-based approach achieves an SER performance on a par with that of the conventional maximum-likelihood  ...  and signal detection in grant-free NOMA.  ... 
arXiv:2201.06245v1 fatcat:a6giiqtk25gphfuecsckm2kfi4

Massive Access for 5G and Beyond [article]

Xiaoming Chen, Derrick Wing Kwan Ng, Wei Yu, Erik G. Larsson, Naofal Al-Dhahir, Robert Schober
2020 arXiv   pre-print
This paper presents a comprehensive survey of aspects of massive access design for B5G wireless networks.  ...  Different from conventional human-type communication, massive access aims at realizing efficient and reliable communications for a massive number of IoT devices.  ...  without a grant [63] .  ... 
arXiv:2002.03491v2 fatcat:e632upafkvhwlm4m2mwhbeleam

Investigation on Evolving Single-carrier NOMA into Multi-carrier NOMA in 5G

Jie Zeng, Tiejun Lv, Ren Ping Liu, Xin Su, Mingyao Peng, Chang Wang, Jiajia Mei
2018 IEEE Access  
multiple access (PDMA).  ...  Non-orthogonal multiple access (NOMA) is one promising technology, which provides high system capacity, low latency, and massive connectivity, to address several challenges in the fifth-generation wireless  ...  shared access (MUSA) and sparse code multiple access (SCMA).  ... 
doi:10.1109/access.2018.2868093 fatcat:xelry2vjgzdwhp3lj42xm4xfua

A General Deep Reinforcement Learning Framework for Grant-Free NOMA Optimization in mURLLC [article]

Yan Liu, Yansha Deng, Hui Zhou, Maged Elkashlan, Arumugam Nallanathan
2021 arXiv   pre-print
Grant-free non-orthogonal multiple access (GF-NOMA) is a potential technique to support massive Ultra-Reliable and Low-Latency Communication (mURLLC) service.  ...  To address this problem, we develop a general learning framework for signature-based GF-NOMA in mURLLC service taking into account the multiple access signature collision, the UE detection, as well as  ...  Fig. 2 : 2 Uplink transmissions for grant-based and grant-free random access.  ... 
arXiv:2101.00515v2 fatcat:q6kdd7becvfa3m3nqhpowwtpwi

Reconstitution of CO2 regulation of SLAC1 anion channel and function of CO2-permeable PIP2;1 aquaporin as carbonic anhydrase 4 interactor [article]

Cun Wang, Honghong Hu, Xue Qin, Brian Zeise, Danyun Xu, Wouter-Jan Rappel, Walter F Boron, Julian I Schroeder
2015 bioRxiv   pre-print
The molecular signaling mechanisms leading to CO2-induced stomatal closure are only partially understood.  ...  These findings identify the CO2-permeable PIP2;1 aquaporin as key interactor of carbonic anhydrases, show functional reconstitution of extracellular CO2 signaling to ion channel regulation and implicate  ...  REFERENCES Ainsworth, E.A., and Long, S.P. (2005). What have we learned from 15 years of free air CO 2 enrichment (FACE)?  ... 
doi:10.1101/030296 fatcat:sh7zjijrmrcahpdg236qnenr6a

LIPIcs : an Open-Access Series for International Conference Proceedings

Marc Herbstritt, Wolfgang Thomas
2016 ERCIM News  
The research has been partly funded by an NWO Free Competition Grant and by a Public-Private Partnership between CWI and NXP Semiconductors.  ...  The MUSA framework proposes a tool, SLA generator, which can be used to identify the Security SLA that each application component must grant.  ...  The MUSA IDE will allow embedding security agents in the application components for self-protection, i.e. they will enable the activation of security monitors and controls at runtime without modifying  ... 
doi:10.18154/rwth-2018-223393 fatcat:ddo7qz65l5b7peuksw2amaoxai
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