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Fundamental limits of secret-key agreement over reciprocal wireless channels are investigated. We consider a two-way block-fading channel where the channel gains in the forward and reverse links between the legitimate terminals are…

Information Theory · Computer Science 2012-11-08 Ashish Khisti

In this paper, we present results of a study of the data rate fairness among nodes within a LoRaWAN cell. Since LoRa/LoRaWAN supports various data rates, we firstly derive the fairest ratios of deploying each data rate within a cell for a…

Networking and Internet Architecture · Computer Science 2018-03-01 Khaled Q. Abdelfadeel , Victor Cionca , Dirk Pesch

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…

Networking and Internet Architecture · Computer Science 2023-05-17 Mohammed Jouhari , Nasir Saeed , Mohamed-Slim Alouini , El Mehdi Amhoud

Continuous energy monitoring is essential for identifying potential savings and predicting the energy requirements of buildings. Energy meters are often located in underground spaces that are difficult to reach with wireless technology.…

Networking and Internet Architecture · Computer Science 2025-12-02 Christof Röhrig , Benz Cramer

Many new narrowband low-power wide-area networks (LPWANs) (e.g., LoRaWAN, Sigfox) have opted to use pure ALOHA-like access for its reduced control overhead and asynchronous transmissions. Although asynchronous access reduces the energy…

Information Theory · Computer Science 2021-01-20 Luca Beltramelli , Aamir Mahmood , Paolo Ferrari , Patrik Österberg , Mikael Gidlund , Emiliano Sisinni

Secret key generation (SKG) from wireless channel reciprocity has been demonstrated on WiFi, LTE, and LoRaWAN, but has never been demonstrated on 5G New Radio (NR) Sounding Reference Signal (SRS) and CSI Reference Signal (CSIRS)…

Signal Processing · Electrical Eng. & Systems 2026-04-09 Sachinkumar B. Mallikarjun , Christoph Lipps , Marvin Reski , Sneha Bhattacharjee , Andreas Weinand , Hans D. Schotten

A Wireless Sensor Network (WSN) is emerging field in Information and communication technology. In WSN data transmission and data collection are unsecure because of sensor node Incompatibility. So providing security to Sensor network is very…

Networking and Internet Architecture · Computer Science 2012-07-25 V. Jayaraj , M. Indhumathi

LoRa is a popular low-power wide-area network (LPWAN) technology that uses spread-spectrum to achieve long-range connectivity and resilience to noise and interference. For energy efficiency reasons, LoRa adopts a pure ALOHA access scheme,…

Signal Processing · Electrical Eng. & Systems 2020-12-16 Mathieu Xhonneux , Joachim Tapparel , Orion Afisiadis , Alexios Balatsoukas-Stimming , Andreas Burg

Low-power wide-area (LPWA) networks are attracting extensive attention because of their abilities to offer low-cost and massive connectivity to Internet of Things (IoT) devices distributed over wide geographical areas. This article provides…

Information Theory · Computer Science 2018-10-26 Zhijin Qin , Frank Y. Li , Geoffrey Ye Li , Julie A. McCann , Qiang Ni

Consumer grade weather stations typically involve transmitting sensor information to a digital console that provides readouts of the data being collected. The wireless range of such system is confined to about 100 m, making their use…

Networking and Internet Architecture · Computer Science 2019-06-10 Ermanno Pietrosemoli , Marco Rainone , Marco Zennaro

LoRa (Long-Range) is an LPWAN (low-power wide-area network) protocol that is part of the IoT family that focusses on long-range communication of up to 14km, albeit with delay-inherent transmissions. Three IoT-based time synchronisation…

Networking and Internet Architecture · Computer Science 2021-06-24 Timothy Jones , Khondokar Fida Hasan

A novel framework for sharing common randomness and generating secret keys in wireless networks is considered. In particular, a network of users equipped with pulse oscillators (POs) and coupling mechanisms in between is considered. Such…

Information Theory · Computer Science 2019-10-29 Hessam Mahdavifar , Najme Ebrahimi

LoRaWAN is a compelling low-cost solution for large-scale indoor Internet of Things (IoT) data backhaul, owing to its strong penetration capability and low power consumption. However, its default pure ALOHA access mechanism leads to severe…

Signal Processing · Electrical Eng. & Systems 2026-05-25 Junxiao Liu , Xinyu Fan , Luping Xiang , Kun Yang

Long Range (LoRa) is a modem technology for wireless communication in the Internet of Things (IoT), which trades off low data-rate for low power consumption. Long Range Wide Area Network (LoRaWAN) has an open specification that determines…

Networking and Internet Architecture · Computer Science 2018-12-05 Yifan Du

Generative models dealing with modeling a~joint data distribution are generally either autoencoder or GAN based. Both have their pros and cons, generating blurry images or being unstable in training or prone to mode collapse phenomenon,…

Machine Learning · Computer Science 2020-09-17 Szymon Knop , Marcin Mazur , Przemysław Spurek , Jacek Tabor , Igor Podolak

LoRaWAN is a popular low power wide area network technology widely used in many scenarios, such as environmental monitoring and smart cities. Different applications demand various quality of service (QoS), and their service within a single…

Networking and Internet Architecture · Computer Science 2020-10-20 Dmitry Bankov , Evgeny Khorov , Andrey Lyakhov

In this paper, the feasibility of implementing a lightweight key distribution scheme using physical layer security for secret key generation (SKG) is explored. Specifically, we focus on examining SKG with the received signal strength (RSS)…

Signal Processing · Electrical Eng. & Systems 2024-04-26 Amitha Mayya , Arsenia Chorti , Rafael F. Schaefer , Gerhard P. Fettweis

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…

Networking and Internet Architecture · Computer Science 2019-07-24 Qihao Zhou , Kan Zheng , Lu Hou , Jinyu Xing , Rongtao Xu

We investigate the problem of covert and secret key generation over a state-dependent discrete memoryless channel with one-way public discussion in which an adversary, the warden, may arbitrarily choose the channel state. We develop an…

Information Theory · Computer Science 2019-11-12 Mehrdad Tahmasbi , Matthieu Bloch

In the classical Secret-Key generation model, Common Randomness is generated by two terminals based on the observation of correlated components of a common source, while keeping it secret from a non-legitimate observer. It is assumed that…

Information Theory · Computer Science 2016-01-28 Nima Tavangaran , Holger Boche , Rafael F. Schaefer