English
Related papers

Related papers: TROPPO LoRa: TROPospheric Personal Observatory usi…

200 papers

Radio emission has been detected in a broad variety of stellar objects from all stages of stellar evolution. However, most of our knowledge originates from targeted observations of small samples, which are strongly biased to sources which…

Solar and Stellar Astrophysics · Physics 2015-10-07 G. Umana , C. Trigilio , T. M. O. Franzen , R. P. Norris , P. Leto , A. Ingallinera , C. S. Buemi , C. Agliozzo , F. Cavallaro , L. Cerrigone

We present a stochastic geometry-based model to investigate alternative medium access choices for LoRaWAN---a widely adopted low-power wide-area networking (LPWAN) technology for the Internet-of-things (IoT). LoRaWAN adoption is driven by…

Information Theory · Computer Science 2020-02-26 Luca Beltramelli , Aamir Mahmood , Patrik Österberg , Mikael Gidlund

Geospatial analysis offers large potential for better understanding, modelling and visualizing our natural and artificial ecosystems, using Internet of Things as a pervasive sensing infrastructure. This paper performs a review of research…

Computers and Society · Computer Science 2018-08-07 Andreas Kamilaris , Frank Ostermann

The advent of large area deep radio and X-ray surveys is leading to the creation of many new BL Lac samples. In particular, the ROSAT All-Sky, Green Bank and FIRST surveys are proving to be rich sources of new BL Lacs. We will discuss the…

NarrowBand-IoT has just joined the LPWAN community. Unlike most of its competitors, NB-IoT did not emerge from a blank slate. Indeed, it is closely linked to LTE, from which it inherits many of the features that undoubtedly determine its…

Networking and Internet Architecture · Computer Science 2019-06-21 Borja Martinez , Ferran Adelantado , Andrea Bartoli , Xavier Vilajosana

In this article we revisit Wireless Sensor Networks from a contemporary perspective, after the surge of the Internet of Things. First, we analyze the evolution of distributed monitoring applications, which we consider inherited from the…

Networking and Internet Architecture · Computer Science 2020-08-05 Borja Martinez , Cristina Cano , Xavier Vilajosana

This paper presents a star-of-star topology for internet-of-things (IoT) networks using mega low-Earth-orbit constellations. The proposed topology enables IoT users to broadcast their sensed data to multiple satellites simultaneously over a…

Signal Processing · Electrical Eng. & Systems 2023-09-06 Ayush Kumar Dwivedi , Sachin Chaudhari , Neeraj Varshney , Pramod K. Varshney

A relentless trend in wireless communications is the hunger for bandwidth, and fresh bandwidth is only to be found at ever-higher frequencies. While 5G systems are seizing the mmWave band, the attention of researchers is shifting already to…

Signal Processing · Electrical Eng. & Systems 2020-08-05 Heedong Do , Sungmin Cho , Jeonghun Park , Ho-Jin Song , Namyoon Lee , Angel Lozano

Several works have outlined the fact that the mobility in intermittently connected wireless networks is strongly governed by human behaviors as they are basically human-centered. It has been shown that the users' moves can be correlated and…

Networking and Internet Architecture · Computer Science 2016-11-17 Mohamed-Haykel Zayani , Vincent Gauthier , Djamal Zeghlache

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…

Networking and Internet Architecture · Computer Science 2019-08-20 Siddhartha Borkotoky , Udo Schilcher , Christian Bettstetter

As telescope facilities become increasingly more capable they also become increasingly complex and require additional resources to operate. This is particularly true for the current and future generations of "software defined telescopes"…

Instrumentation and Methods for Astrophysics · Physics 2018-10-01 Jayce Dowell , Gregory B. Taylor

A number of hardware upgrades for the Low-Frequency Array (LOFAR) are currently under development. These upgrades are collectively referred to as the LOFAR 2.0 upgrade. The first stage of LOFAR 2.0 will introduce a distributed clock signal…

Instrumentation and Methods for Astrophysics · Physics 2021-08-11 H. W. Edler , F. de Gasperin , D. Rafferty

Relativistic, charged particles present in extensive air showers lead to a coherent emission of radio pulses which are measured to identify the shower initiating high-energy cosmic rays. Especially during thunderstorms, there are additional…

This paper demonstrates how spectrum up to 1 THz will support mobile communications beyond 5G in the coming decades. Results of rooftop surrogate satellite/tower base station measurements at 140 GHz show the natural isolation between…

Information Theory · Computer Science 2021-07-30 Yunchou Xing , Theodore S. Rappaport

The SHETLAND-NET research project aims to develop an Internet of Things (IoT) telemetry service in Antarctica by interconnecting Wireless Sensor Networks (WSN) through Near Vertical Incidence Skywave radio links (NVIS) that build a Long Fat…

Networking and Internet Architecture · Computer Science 2022-10-21 Adrià Mallorquí , Agustín Zaballos , Alan Briones , Guiomar Corral

Time-domain astrophysics has leaped forward with the direct discovery of gravitational waves and the emergence of new generation instruments for multi-messenger studies. The capacity of the multi-messenger multi-wavelength community to…

Instrumentation and Methods for Astrophysics · Physics 2024-10-22 Monica Seglar-Arroyo , Halim Ashkar , Mathieu de Bony de Lavergne , Fabian Schüssler

We have tested the experimental prerequisites for a Space-to-Ground quantum communication link between satellites and an optical ground station. The feasibility of our ideas is being assessed using the facilities of the ASI Matera Laser…

The cross-domain oceanic connectivity ranging from underwater to the sky has become increasingly indispensable for a plethora of data-consuming maritime applications, such as maritime meteorological monitoring and offshore exploration.…

Signal Processing · Electrical Eng. & Systems 2026-03-05 Tianqi Mao , Jiayue Liu , Zeping Sui , Leyu Cao , Xiao Liang , Dezhi Zheng , Zhaocheng Wang

In the Internet-of-Things (IoT), random access is employed for devices to share a common access channel in packet transmission with low signaling overhead. Although a retransmission strategy is necessary for packet collision resolution, it…

Information Theory · Computer Science 2019-07-23 Jinho Choi

Observation of interplanetary scintillation (IPS) beyond Earth-orbit can be challenging due to the necessity to use low radio frequencies at which scintillation due to the ionosphere could confuse the interplanetary contribution. A recent…

Instrumentation and Methods for Astrophysics · Physics 2016-09-07 R. A. Fallows , M. M. Bisi , B. Forte , Th. Ulich , A. A. Konovalenko , G. Mann , C. Vocks
‹ Prev 1 8 9 10 Next ›