Results 11 to 20 of about 1,344,414 (278)
Structured Massive Access for Scalable Cell-Free Massive MIMO Systems [PDF]
IEEE Journal on Selected Areas in Communications, 2021 How to meet the demand for increasing number of users, higher data rates, and stringent quality-of-service (QoS) in the beyond fifth-generation (B5G) networks? Cell-free massive multiple-input multiple-output (MIMO) is considered as a promising solution, in which many wireless access points cooperate to jointly serve the users by exploiting coherent ...
Shuaifei Chen +4 more
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Massive Access for 5G and Beyond [PDF]
IEEE Journal on Selected Areas in Communications, 2021 Massive access, also known as massive connectivity or massive machine-type communication (mMTC), is one of the main use cases of the fifth-generation (5G) and beyond 5G (B5G) wireless networks. A typical application of massive access is the cellular Internet of Things (IoT).
Xiaoming Chen +5 more
openaire +4 more sources
Compressive-Sensing-Based Grant-Free Massive Access for 6G Massive Communication
IEEE Internet of Things JournalThe advent of the sixth-generation (6G) of wireless communications has given rise to the necessity to connect vast quantities of heterogeneous wireless devices, which requires advanced system capabilities far beyond existing network architectures. In particular, such massive communication has been recognized as a prime driver that can empower the 6G ...
Zhen Gao +6 more
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Massive Unsourced Random Access for Massive MIMO Correlated Channels [PDF]
GLOBECOM 2020 - 2020 IEEE Global Communications Conference, 2020 This paper investigates the massive random access for a huge amount of user devices served by a base station (BS) equipped with a massive number of antennas. We consider a grant-free unsourced random access (U-RA) scheme where all users possess the same codebook and the BS aims at declaring a list of transmitted codewords and recovering the messages ...
Xie, Xinyu +3 more
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6G Massive Radio Access Networks: Key Applications, Requirements and Challenges
IEEE Open Journal of Vehicular Technology, 2021 Driven by the emerging use cases in massive access future networks, technological advancements and evolutions are needed for wireless communications beyond the fifth-generation (5G) networks. In particular, we envisage that the upcoming sixth-generation (
Ying Loong Lee +3 more
doaj +1 more source
Access Control in NB-IoT Networks: A Deep Reinforcement Learning Strategy
Information, 2020 The Internet of Things (IoT) is a key enabler of the digital mutation of our society. Driven by various services and applications, Machine Type Communications (MTC) will become an integral part of our daily life, over the next few years.
Yassine Hadjadj-Aoul +1 more
doaj +1 more source
IEEE Access, 2020 To meet the increased requirement of machine-to-machine (M2M) communication, the potential to support massive access with sporadic traffic in uplink of two typical methods, one is the collision avoidance (CA) method at the user side, and the other is the
Tingyu Qi, Youzheng Wang
doaj +1 more source
Phase Transition Analysis for Covariance-Based Massive Random Access With Massive MIMO [PDF]
IEEE Transactions on Information Theory, 2022 This paper considers a massive random access problem in which a large number of sporadically active devices wish to communicate with a base station (BS) equipped with massive multiple-input multiple-output (MIMO) antennas. Each device is preassigned a unique signature sequence, and the BS identifies the active devices by detecting which sequences are ...
Zhilin Chen +3 more
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Massive Grant-Free Access With Massive MIMO and Spatially Coupled Replicas
IEEE Transactions on Communications, 2022 Massive multiple access schemes, capable of serving a large number of uncoordinated devices while fulfilling reliability and latency constraints, are proposed. The schemes belong to the class of grant-free coded random access protocols and are tailored to massive multiple input multiple output (MIMO) base station processing.
Valentini L., Chiani M., Paolini E.
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Soft Interference Cancellation for Random Coding in Massive Gaussian Multiple-Access [PDF]
, 2020 We utilize recent results on the exact block error probability of Gaussian random codes in additive white Gaussian noise to analyze Gaussian random coding for massive multiple-access at finite message length.
Müller, Ralf
core +3 more sources