Results 11 to 20 of about 14,768 (170)

LoRa in a haystack: a study of the LORA signal behavior [PDF]

open access: yes2019 International Conference on Wireless and Mobile Computing, Networking and Communications (WiMob), 2019
Over the years, LoRa has been raising a lot of interest, both from the academia and the industry. LoRa is indeed a promising technology that enables long range and low power communications to connect IoT devices to the Internet. LoRa is often envisioned for several applications such as regular reporting but it is also aimed to be exploited for other ...
Amadou, Ibrahim   +2 more
openaire   +2 more sources

TROPPO LoRa [PDF]

open access: yesProceedings of the 1st Workshop on Experiences with the Design and Implementation of Frugal Smart Objects, 2020
With the growth of LoRa deployments there are plenty of anecdotal reports of very long wireless links, well beyond the line of sight. Most reports suggest that these links are related to anomalous tropospheric propagation. We developed a platform to study tropospheric links based on TheThingsNetwork, a popular LoRaWAN-based infrastructure.
Zennaro M.   +5 more
openaire   +2 more sources

Long-Lived LoRa: Prolonging the Lifetime of a LoRa Network [PDF]

open access: yes2020 IEEE 28th International Conference on Network Protocols (ICNP), 2020
Prolonging the network lifetime is a major consideration in many Internet of Things applications. In this paper, we study maximizing the network lifetime of an energy-harvesting LoRa network. Such a network is characterized by heterogeneous recharging capabilities across the nodes that is not taken into account in existing work. We propose a link-layer
Sezana Fahmida   +4 more
openaire   +2 more sources

Analysis of the reliability of LoRa [PDF]

open access: yesIEEE Communications Letters, 2020
This letter studies the performance of a single gateway LoRa system in the presence of different interference considering the imperfect orthogonality effect. It utilizes concepts of stochastic geometry to present a low-complexity approximate closed-form model for computing the success and coverage probabilities under these challenging conditions. Monte
openaire   +4 more sources

S-LoRA: Serving Thousands of Concurrent LoRA Adapters

open access: yesCoRR, 2023
The "pretrain-then-finetune" paradigm is commonly adopted in the deployment of large language models. Low-Rank Adaptation (LoRA), a parameter-efficient fine-tuning method, is often employed to adapt a base model to a multitude of tasks, resulting in a substantial collection of LoRA adapters derived from one base model.
Ying Sheng 0007   +11 more
openaire   +2 more sources

Simulation of LoRa in NS-3: Improving LoRa Performance with CSMA [PDF]

open access: yes2018 IEEE International Conference on Communications (ICC), 2018
In this paper, we consider two research issues. First, we present a NS-3 module that simulates the behavior of LoRa in an accurate way. To validate the module, we compare its results with measurements on a real-world testbed and with measured values reported by other work. We also show that the module correctly represents the capture effect that lowers
Duda, Andrzej, To, Thanh-Hai
openaire   +2 more sources

LoRa Alliance Certification

open access: yesJournal of ICT Standardization, 2021
LoRaWAN® Certification of devices is critical for effective and efficient mass deployment of LoRaWAN Networks, as it ensures devices will work on any network, under all conditions. Certified Devices significantly reduce the support costs as any product failures detected later when the device is deployed is far more expensive to repair and poor RF ...
openaire   +2 more sources

Implementation of a LoRa Mesh Library

open access: yesIEEE Access, 2022
This work was supported by the Ministry of Science and Innovation of the Spanish Government through the State Research Agency (AEI) under Project PID2019-106774RB-C21, Project PCI2019-111851-2 (LeadingEdge CHIST-ERA), and Project PCI2019-111850-2 (DiPET CHIST-ERA).
Miquel Solé, Joan   +3 more
openaire   +4 more sources

LoRA as Oracle

open access: yesCoRR
Backdoored and privacy-leaking deep neural networks pose a serious threat to the deployment of machine learning systems in security-critical settings. Existing defenses for backdoor detection and membership inference typically require access to clean reference models, extensive retraining, or strong assumptions about the attack mechanism. In this work,
Marco Arazzi, Antonino Nocera
openaire   +2 more sources

Vision as LoRA

open access: yesCoRR
We introduce Vision as LoRA (VoRA), a novel paradigm for transforming an LLM into an MLLM. Unlike prevalent MLLM architectures that rely on external vision modules for vision encoding, VoRA internalizes visual capabilities by integrating vision-specific LoRA layers directly into the LLM.
Han Wang   +7 more
openaire   +2 more sources

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