Experiment-based Models for Air Time and Current Consumption of LoRaWAN LR-FHSS
The higher capacity, long-range and robustness to Doppler effect make Long Range – Frequency Hopping Spread Spectrum (LR-FHSS) a primary candidate for […]
A Distributed mMIMO Architecture For Over-The-Air Federated Learning
This paper compares distributed massive Multiple-Input Multiple-Output (mMIMO) and centralized MIMO in the context of over-the-air federated learning, taking into account a […]
Joint Estimation of Clustered user Activity and Correlated Channels with Unknown Covariance in mMTC
This paper considers joint user identification and channel estimation (JUICE) in grant-free access with a clustered user activity pattern. In particular, we […]
Performance Analysis of MIMO-NOMA Iterative Receivers for Massive Connectivity
The Fifth Generation (5G) of wireless networks introduced support to Machine-Type Communications (MTC) which is the wireless connectivity solution for Internet of […]
Analysis and Simulation of LoRaWAN LR-FHSS for Direct-to-Satellite Scenario
Long Range-Frequency Hopping Spread Spectrum (LR-FHSS) has been recently introduced into the LoRaWAN protocol specification to increase network capacity and collision robustness […]
MEC-enabled 5G Use Cases
The future of mobile and internet technologies are manifesting advancements beyond the existing scope of science. The concepts of automated driving augmented-reality […]
Massive Wireless Energy Transfer With Statistical CSI Beamforming
Wireless energy transfer (WET) is a promising solution to enable massive machine-type communications (mMTC) with low-complexity and low-powered wireless devices. Given the […]
Network Slicing for eMBB and mMTC with NOMA and Space Diversity Reception
In this work, we study the coexistence in the same Radio Access Network (RAN) of two use cases present in the Fifth […]
Iterative Reweighted Algorithms for Joint User Identification and Channel Estimation in Spatially Correlated Massive MTC
Joint user identification and channel estimation (JUICE) is a main challenge in grant-free massive machine-type communications (mMTC). The sparse pattern in users’ […]
Hybrid resource scheduling for aggregation in massive machine-type communication networks
Data aggregation is a promising approach to enable massive machine-type communication (mMTC). Here, we first characterize the aggregation phase where a massive […]