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The discrepancy between the upper bound on throughput in wireless networks and the throughput scaling in random networks which is also known as the connectivity-throughput trade-off is analyzed. In a random network with $\lambda$ nodes per…

信息论 · 计算机科学 2010-08-23 Ralph Tanbourgi , Holger Jäkel , Friedrich K. Jondral

Low Rank Adaptation (LoRA) has gained massive attention in the recent generative AI research. One of the main advantages of LoRA is its ability to be fused with pretrained models, adding no overhead during inference. However, from a mobile…

This paper presents HURRA, a system that aims to reduce the time spent by human operators in the process of network troubleshooting. To do so, it comprises two modules that are plugged after any anomaly detection algorithm: (i) a first…

人工智能 · 计算机科学 2021-07-26 Jose M. Navarro , Dario Rossi

This paper addresses the limitations of current satellite payload architectures, which are predominantly hardware-driven and lack the flexibility to adapt to increasing data demands and uneven traffic. To overcome these challenges, we…

Long Range (LoRa) has become a key enabler technology for low power wide area networks. However, due to its ALOHA-based medium access scheme, LoRa has to cope with collisions that limit the capacity and network scalability. Collisions…

信号处理 · 电气工程与系统科学 2022-04-15 Qiaohan Zhang , Ivo Bizon , Atul Kumar , Ana Belen Martinez , Marwa Chafii , Gerhard Fettweis

Commodity memory interfaces have difficulty in scaling memory capacity to meet the needs of modern multicore and big data systems. DRAM device density and maximum device count are constrained by technology, package, and signal in- tegrity…

硬件体系结构 · 计算机科学 2015-05-14 Zehan Cui , Tianyue Lu , Haiyang Pan , Sally A. Mckee , Mingyu Chen

Minimal infrastructure requirements make LoRa suitable for service delivery in remote areas. Additionally, web applications have become a de-facto standard for modern service delivery. However, Long Range (LoRa) fails to enable HTTP access…

网络与互联网体系结构 · 计算机科学 2025-06-27 Atonu Ghosh , Sudip Misra

LoRa is a promising communication technology for enabling the next-generation indoor Internet of Things applications. Very few studies, however, have analyzed its performance indoors. Besides, these indoor studies investigate mostly the…

网络与互联网体系结构 · 计算机科学 2025-06-23 Mahbubur Rahman , Abusayeed Saifullah

Satellite networks provide communication services to global users with an uneven geographical distribution. In densely populated regions, Inter-satellite links (ISLs) often experience congestion, blocking traffic from other links and…

网络与互联网体系结构 · 计算机科学 2024-06-04 Hao Wu

We present Wi-Lo, which allows to convert an ordinary 802.11 (WiFi) access point into an internet of things (IoT) gateway supporting the low-power wide area network (LPWAN) technology LoRa in the downlink. Our Wi-Lo system only requires a…

网络与互联网体系结构 · 计算机科学 2021-05-12 Piotr Gawlowicz , Anatolij Zubow , Falko Dressler

Long range radio communication is preferred in many IoT deployments as it avoids the complexity of multi-hop wireless networks. LoRa is a popular, energy-efficient wireless modulation but its networking substrate LoRaWAN introduces severe…

网络与互联网体系结构 · 计算机科学 2022-12-05 José Álamos , Peter Kietzmann , Thomas Schmidt , Matthias Wählisch

Enabling ultra fast systems has been widely investigated during recent decades. Although polarization has been deployed from the beginning in satellite communications, nowadays it is being exploited to increase the throughput of satellite…

信号处理 · 电气工程与系统科学 2018-03-22 Pol Henarejos , Ana Pérez-Neira , Nicolò Mazzali , Carlos Mosquera

Parameter-efficient fine-tuning methods, represented by LoRA, play an essential role in adapting large-scale pre-trained models to downstream tasks. However, fine-tuning LoRA-series models also faces the risk of overfitting on the training…

机器学习 · 计算机科学 2024-04-16 Yang Lin , Xinyu Ma , Xu Chu , Yujie Jin , Zhibang Yang , Yasha Wang , Hong Mei

We propose a communication scheme with relays to improve the reliability of a Long Range (LoRa) sensor network with duty-cycle limitations. The relays overhear the sensors' transmissions and forward them to a gateway. Simulations show that…

网络与互联网体系结构 · 计算机科学 2019-08-20 Siddhartha Borkotoky , Udo Schilcher , Christian Bettstetter

Low-rank Adaptation (LoRA) has gained popularity as a fine-tuning approach for Large Language Models (LLMs) due to its low resource requirements and good performance. While a plethora of work has investigated improving LoRA serving…

机器学习 · 计算机科学 2025-08-06 Minghao Yan , Zhuang Wang , Zhen Jia , Shivaram Venkataraman , Yida Wang

We consider a multipoint-to-point network in which sensors periodically send measurements to a gateway. The system uses Long Range (LoRa) communications in a frequency band with duty-cycle limits. Our aim is to enhance the reliability of…

网络与互联网体系结构 · 计算机科学 2019-04-15 Siddhartha Borkotoky , Christian Bettstetter , Udo Schilcher , Christian Raffelsberger

Single path routing that is currently used in the internet routers,is easy to implement as it simplifies the routing tables and packet flow paths. However it is not optimal and has shortcomings in utilizing the network resources optimally,…

网络与互联网体系结构 · 计算机科学 2016-01-07 Rashmi Singh , Yatindra Nath Singh , Anita Yadav

The cloud's flexibility and promise of seamless auto-scaling notwithstanding, its ability to meet service level objectives (SLOs) typically calls for some form of control in resource usage. This seemingly traditional problem gives rise to…

网络与互联网体系结构 · 计算机科学 2021-01-18 Chong Li , Jiangnan Liu , Chenyang Lu , Roch Guerin , Christopher D. Gill

Current probabilistic flow-size monitoring can only detect heavy hitters (e.g., flows utilizing 10 times their permitted bandwidth), but cannot detect smaller overuse (e.g., flows utilizing 50-100% more than their permitted bandwidth).…

Fine-tuning large language models (LLMs) with low-rank adaptations (LoRAs) has become common practice, often yielding numerous copies of the same LLM differing only in their LoRA updates. This paradigm presents challenges for systems that…

分布式、并行与集群计算 · 计算机科学 2025-06-02 Rickard Brüel-Gabrielsson , Jiacheng Zhu , Onkar Bhardwaj , Leshem Choshen , Kristjan Greenewald , Mikhail Yurochkin , Justin Solomon