Results 41 to 50 of about 4,051 (146)

Grant-Free Massive MTC-Enabled Massive MIMO: A Compressive Sensing Approach

, 2018
A key challenge of massive MTC (mMTC), is the joint detection of device activity and decoding of data. The sparse characteristics of mMTC makes compressed sensing (CS) approaches a promising solution to the device detection problem. However, utilizing CS-
Larsson, Erik G., Senel, Kamil
core   +1 more source

Massive unsourced multiple access scheme based on block sequence codebook and compressed sensing

Tongxin xuebao, 2023
A massive unsourced multiple access scheme based on block sequence codebook and compressed sensing was proposed for sporadic burst scenario in massive machine type communication (mMTC).Firstly, a large-capacity spreading codebook generation scheme was ...
Jing ZHANG, Lin MA, Chulong LIANG, Hongxu GAO   +3 more
doaj   +2 more sources

Performance analysis of ultra-reliable short message decode and forward relaying protocols

EURASIP Journal on Wireless Communications and Networking, 2018
Machine-type communication (MTC) is a rapidly growing technology which covers a broad range of automated applications and propels the world into a fully connected society.
Parisa Nouri, Hirley Alves, Matti Latva-aho   +2 more
doaj   +1 more source

Random Access Protocols for Massive MIMO

, 2017
5G wireless networks are expected to support new services with stringent requirements on data rates, latency and reliability. One novel feature is the ability to serve a dense crowd of devices, calling for radically new ways of accessing the network ...
Björnson, Emil, de Carvalho, Elisabeth, Larsson, Erik G., Popovski, Petar, Sørensen, Jesper H.   +4 more
core   +1 more source

A Survey on NB-IoT Random Access: Approaches for Uplink Radio Access Network Congestion Management

IEEE Access
Narrowband Internet of Things (NB-IoT) is one of the most promising technologies for enabling reliable communication among low-power, and low cost devices present in massive machine-type communications (mMTC). In NB-IoT, random access (RA) is implemented
Loini Iiyambo, Gerhard Hancke, Adnan M. Abu-Mahfouz   +2 more
doaj   +1 more source

Optimizing Subchannel Assignment and Power Allocation for Network Slicing in High-Density NOMA Networks: A Q-Learning Approach

IEEE Access
The growing number of connected devices in high-density environments poses serious challenges for accommodating and managing these devices across different network slicing services, such as ultra-reliable low-latency communication (URLLC) and massive ...
Suhare Solaiman
doaj   +1 more source

Self-Organizing Networks for 5G and Beyond: A View from the Top

Future Internet, 2022
We describe self-organizing network (SON) concepts and architectures and their potential to play a central role in 5G deployment and next-generation networks.
Andreas G. Papidas, George C. Polyzos
doaj   +1 more source

Random Pilot and Data Access in Massive MIMO for Machine-type Communications

, 2017
A massive MIMO system, represented by a base station with hundreds of antennas, is capable of spatially multiplexing many devices and thus naturally suited to serve dense crowds of wireless devices in emerging applications, such as machine-type ...
Björnson, Emil, de Carvalho, Elisabeth, Larsson, Erik G., Popovski, Petar, Sørensen, Jesper H.   +4 more
core   +1 more source

Breaking Orthogonality in Uplink With Randomly Deployed Sources

IEEE Open Journal of the Communications Society
The requirement of the upcoming sixth-generation (6G) wireless communication systems to significantly elevate the services of enhanced mobile broadband (eMBB) and massive machine-type communications (mMTC) necessitates the design and investigation of ...
Apostolos A. Tegos, Sotiris A. Tegos, Dimitrios Tyrovolas, Panagiotis D. Diamantoulakis, Panagiotis Sarigiannidis, George K. Karagiannidis   +5 more
doaj   +1 more source

A Learning-Based Energy-Efficient Device Grouping Mechanism for Massive Machine-Type Communication in the Context of Beyond 5G Networks

Journal of Sensor and Actuator Networks
With the increasing demand for high data rates, low delay, and extended battery life, managing massive machine-type communication (mMTC) in the beyond 5G (B5G) context is challenging.
Rubbens Boisguene, Ibrahim Althamary, Chih-Wei Huang   +2 more
doaj   +1 more source