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To enhance the reliability of LoRa sensor networks, we propose two opportunistic forwarding protocols in which relays overhear sensor-to-gateway messages and periodically forward them to a gateway. To reduce the number of transmissions, the…

网络与互联网体系结构 · 计算机科学 2021-09-14 Siddhartha S. Borkotoky , Pavan Datta Abbineni , Vatsalya Chaubey , Sonu Rathi

Long Range (LoRa) network is emerging as one of the most promising Low Power Wide Area (LPWA) networks, since it enables the energy-constraint devices distributed over wide areas to establish affordable connectivity. However, how to…

网络与互联网体系结构 · 计算机科学 2019-07-24 Qihao Zhou , Kan Zheng , Lu Hou , Jinyu Xing , Rongtao Xu

Within the LPWAN framework, the LoRa modulation adopted by LoRaWAN technology has garnered significant interest as a connectivity solution for IoT applications due to its ability to offer low-cost, low-power, and long-range communications.…

信号处理 · 电气工程与系统科学 2025-06-27 Jamil Farhat , Gianni Pasolini , Enrico Paolini , Muhammad Asad Ullah , Richard Demo Souza

LoRa networks are pivotally enabling Long Range connectivity to low-cost and power-constrained user equipments (UEs) in a wide area, whereas a critical issue is to effectively allocate wireless resources to support potentially massive UEs…

信息论 · 计算机科学 2021-11-08 Jiangbin Lyu , Dan Yu , Liqun Fu

The Internet of Things (IoT) signifies a revolutionary technological advancement, enhancing various applications through device interconnectivity while introducing significant challenges due to these devices' limited hardware and…

网络与互联网体系结构 · 计算机科学 2025-12-08 Mohammadhossein Homaei

LoRaWAN has emerged as one of the promising low-power wide-area network technologies to enable long-range sensing and monitoring applications in Internet of Things. The LoRa physical layer used in LoRaWAN suffers from low data rates and…

信号处理 · 电气工程与系统科学 2020-02-04 Akshay Ramesh Jadhav , P. Rajalakshmi

With the rapid development of cloud and edge computing, Internet of Things (IoT) applications have been deployed in various aspects of human life. In this paper, we design and implement a holistic LoRa-based IoT system with LoRa…

Internet of Things applications have gained widespread recognition for their efficacy in typical scenarios, such as smart cities and smart healthcare. Nonetheless, there exist numerous unconventional situations where IoT technologies have…

网络与互联网体系结构 · 计算机科学 2023-11-01 Luca Scalambrin , Andrea Zanella , Xavier Vilajosana

Long range wireless transmission techniques such as LoRa are preferential candidates for a substantial class of IoT applications, as they avoid the complexity of multi-hop wireless forwarding. The existing network solutions for LoRa,…

网络与互联网体系结构 · 计算机科学 2023-07-18 José Álamos , Thomas Schmidt , Matthias Waehlisch

LoRA is a technique that reduces the number of trainable parameters in a neural network by introducing low-rank adapters to linear layers. This technique is used both for fine-tuning and full training of large language models. This paper…

机器学习 · 计算机科学 2024-06-17 Daria Cherniuk , Aleksandr Mikhalev , Ivan Oseledets

Low-rank adaptation (LoRA) and its variants are widely employed in fine-tuning large models, including large language models for natural language processing and diffusion models for computer vision. This paper proposes a generalized…

计算机视觉与模式识别 · 计算机科学 2024-03-19 Xiangyu Chen , Jing Liu , Ye Wang , Pu Perry Wang , Matthew Brand , Guanghui Wang , Toshiaki Koike-Akino

LoRaWAN deployments follow an ad-hoc deployment model that has organically led to overlapping communication networks, sharing the wireless spectrum, and completely unaware of each other. LoRaWAN uses ALOHA-style communication where it is…

网络与互联网体系结构 · 计算机科学 2021-11-22 Laksh Bhatia , Po-Yu Chen , Michael Breza , Cong Zhao , Julie A. McCann

In the rapidly evolving landscape of wireless networks, achieving enhanced throughput with low latency for data transmission is crucial for future communication systems. While low complexity OSPF-type solutions have shown effectiveness in…

网络与互联网体系结构 · 计算机科学 2024-07-29 David Zenati , Tzalik Maimon , Kobi Cohen

LoRa has become a cornerstone for city-wide IoT applications due to its long-range, low-power communication. It achieves extended transmission by spreading symbols over multiple samples, with redundancy controlled by the Spreading Factor…

网络与互联网体系结构 · 计算机科学 2025-11-25 Weiwei Chen , Huaxuan Xiao , Jiefeng Zhang , Xianjin Xia , Shuai Wang , Xianjun Deng , Dan Zeng

Long-range (LoRa) technology is most widely used for enabling low-power wide area networks (WANs) on unlicensed frequency bands. Despite its modest data rates, it provides extensive coverage for low-power devices, making it an ideal…

网络与互联网体系结构 · 计算机科学 2023-05-17 Mohammed Jouhari , Nasir Saeed , Mohamed-Slim Alouini , El Mehdi Amhoud

Long range communication with LoRa has become popular as it avoids the complexity of multi-hop communication at low cost and low energy consumption. LoRa is openly accessible, but its packets are particularly vulnerable to collisions due to…

网络与互联网体系结构 · 计算机科学 2025-05-14 José Álamos , Thomas C. Schmidt , Matthias Wählisch

Satellite Internet of Things (Sat-IoT) is a novel framework in which satellites integrate sensing, communication and computing capabilities to carry out task-oriented communications. In this paper we propose to use the Long Range (LoRa)…

信号处理 · 电气工程与系统科学 2024-05-28 Marc Martinez-Gost , Ana Pérez-Neira , Miguel Ángel Lagunas

LoRaWAN is one of the most promising standards for IoT applications. Nevertheless, the high density of end-devices expected for each gateway, the absence of an effective synchronization scheme between gateway and end-devices, challenge the…

网络与互联网体系结构 · 计算机科学 2018-09-17 Tommaso Polonelli , Davide Brunelli , Luca Benini

Flexible optical network is a promising technology to accommodate high-capacity demands in next-generation networks. To ensure uninterrupted communication, existing lightpath provisioning schemes are mainly done with the assumption of…

网络与互联网体系结构 · 计算机科学 2022-07-13 Cao Chen , Fen Zhou , Yuanhao Liu , Shilin Xiao

LoRa is currently one of the most widely used low-power wide-area network (LPWAN) technologies. The physical layer leverages a chirp spread spectrum modulation to achieve long-range communication with low power consumption. Synchronization…

信号处理 · 电气工程与系统科学 2025-05-06 Joachim Tapparel , Andreas Burg