127 citations · 356 across the 54 of their papers we have counts for
24 papers · 1 filter
Non-Coherent Over-the-Air Federated Learning: Protocol, Convergence, and Device Scheduling
Haifeng Wen, Nicolò Michelusi, Osvaldo Simeone +2
To mitigate the scalability bottleneck in the radio access network (RAN) in federated edge learning (FEEL), over-the-air federated learning (AirFL) exploits waveform superposition…
NCAirFL: CSI-Free Over-the-Air Federated Learning Based on Non-Coherent Detection
Haifeng Wen, Nicolò Michelusi, Osvaldo Simeone +1
Over-the-air federated learning (FL), i.e., AirFL, leverages computing primitively over multiple access channels. A long-standing challenge in AirFL is to achieve coherent signal a…
Decentralized Federated Learning via Non-Coherent Over-the-Air Consensus
Nicolò Michelusi
This paper presents NCOTA-DGD, a Decentralized Gradient Descent (DGD) algorithm that combines local gradient descent with a novel Non-Coherent Over-The-Air (NCOTA) consensus scheme…
MAESTRO-X: Distributed Orchestration of Rotary-Wing UAV-Relay Swarms
Bharath Keshavamurthy, Matthew Bliss, Nicolò Michelusi
This work details a scalable framework to orchestrate a swarm of rotary-wing UAVs serving as cellular relays to facilitate beyond line-of-sight connectivity and traffic offloading…
Adaptive Millimeter-Wave Communications Exploiting Mobility and Blockage Dynamics
Muddassar Hussain, Maria Scalabrin, Michele Rossi +1
Mobility may degrade the performance of next-generation vehicular networks operating at the millimeter-wave spectrum: frequent loss of alignment and blockages require repeated beam…
Power-Constrained Trajectory Optimization for Wireless UAV Relays with Random Requests
Matthew Bliss, Nicolò Michelusi
This paper studies the adaptive trajectory design of a rotary-wing UAV serving as a relay between ground nodes dispersed in a circular cell and generating uplink data transmissions…
Mobility and Blockage-aware Communications in Millimeter-Wave Vehicular Networks
Muddassar Hussain, Maria Scalabrin, Michele Rossi +1
Mobility may degrade the performance of next-generation vehicular networks operating at the millimeter-wave spectrum: frequent mis-alignment and blockages require repeated beam tra…
Second-best Beam-Alignment via Bayesian Multi-Armed Bandits
Muddassar Hussain, Nicolo Michelusi
Millimeter-wave (mm-wave) systems rely on narrow-beams to cope with the severe signal attenuation in the mm-wave frequency band. However, susceptibility to beam mis-alignment due t…
Trajectory Optimization for Rotary-Wing UAVs in Wireless Networks with Random Requests
Matthew Bliss, Nicolò Michelusi
This paper studies the trajectory optimization problem in a scenario where a single rotary-wing UAV acts as a relay of data payloads for downlink transmission requests generated ra…
Coded Energy-Efficient Beam-Alignment for Millimeter-Wave Networks
Muddassar Hussain, Nicolo Michelusi
Millimeter-wave communications rely on narrow-beam transmissions to cope with the strong signal attenuation at these frequencies, thus demanding precise alignment between transmitt…
Energy-Efficient Interactive Beam-Alignment for Millimeter-Wave Networks
Muddassar Hussain, Nicolo Michelusi
Millimeter-wave will be a key technology in next-generation wireless networks thanks to abundant bandwidth availability. However, the use of large antenna arrays with beamforming d…
Beam Training and Data Transmission Optimization in Millimeter-Wave Vehicular Networks
Maria Scalabrin, Nicolò Michelusi, Michele Rossi
Future vehicular communication networks call for new solutions to support their capacity demands, by leveraging the potential of the millimeter-wave (mm-wave) spectrum. Mobility, i…
Multi-Scale Spectrum Sensing in Dense Multi-Cell Cognitive Networks
Nicolo Michelusi, Matthew Nokleby, Urbashi Mitra +1
Multi-scale spectrum sensing is proposed to overcome the cost of full network state information on the spectrum occupancy of primary users (PUs) in dense multi-cell cognitive netwo…
Optimal Beam Sweeping and Communication in Mobile Millimeter-Wave Networks
Nicolo Michelusi, Muddassar Hussain
Millimeter-wave (mm-wave) communications incur a high beam alignment cost in mobile scenarios such as vehicular networks. Therefore, an efficient beam alignment mechanism is requir…
Optimal Spectrum Sharing with ARQ based Legacy Users via Chain Decoding
Nicolo Michelusi
This paper investigates the design of access policies in spectrum sharing networks by exploiting the retransmission protocol of legacy primary users (PUs) to improve the spectral e…
Multi-scale Spectrum Sensing in Small-Cell mm-Wave Cognitive Wireless Networks
Nicolo Michelusi, Matthew Nokleby, Urbashi Mitra +1
In this paper, a multi-scale approach to spectrum sensing in cognitive cellular networks is proposed. In order to overcome the huge cost incurred in the acquisition of full network…
Throughput Optimal Beam Alignment in Millimeter Wave Networks
Muddassar Hussain, Nicolo Michelusi
Millimeter wave communications rely on narrow-beam transmissions to cope with the strong signal attenuation at these frequencies, thus demanding precise beam alignment between tran…
Energy-Based Adaptive Multiple Access in LPWAN IoT Systems with Energy Harvesting
Nicolo Michelusi, Marco Levorato
This paper develops a control framework for a network of energy harvesting nodes connected to a Base Station (BS) over a multiple access channel. The objective is to adapt their tr…
Cognitive Access-Transmission Policies under a Primary ARQ process via Chain Decoding
Nicolo Michelusi, Petar Popovski, Michele Zorzi
This paper introduces a novel technique that enables access by a cognitive secondary user (SU) to a spectrum occupied by an incumbent primary user (PU) that employs Type-I Hybrid A…
A new result of the scaling law of weighted L1 minimization
Jun Zhang, Urbashi Mitra, Kuan-Wen Huang +1
This paper study recovery conditions of weighted L1 minimization for signal reconstruction from compressed sensing measurements. A sufficient condition for exact recovery by using…
Cross-layer estimation and control for Cognitive Radio: Exploiting Sparse Network Dynamics
Nicolo Michelusi, Urbashi Mitra
In this paper, a cross-layer framework to jointly optimize spectrum sensing and scheduling in resource constrained agile wireless networks is presented. A network of secondary user…
Capacity of electron-based communication over bacterial cables: the full-CSI case
Nicolo Michelusi, Urbashi Mitra
Motivated by recent discoveries of microbial communities that transfer electrons across centimeter-length scales, this paper studies the information capacity of bacterial cables vi…
Optimal Adaptive Random Multiaccess in Energy Harvesting Wireless Sensor Networks
Nicolo Michelusi, Michele Zorzi
Wireless sensors can integrate rechargeable batteries and energy-harvesting (EH) devices to enable long-term, autonomous operation, thus requiring intelligent energy management to…
Cognitive Access Policies under a Primary ARQ process via Forward-Backward Interference Cancellation
Nicolò Michelusi, Petar Popovski, Osvaldo Simeone +2
This paper introduces a novel technique for access by a cognitive Secondary User (SU) using best-effort transmission to a spectrum with an incumbent Primary User (PU), which uses T…