Combining OFDM-MFSK and Chirp Spread Spectrum Modulation for Applications in Low-Power Wide-Area Networks

2021 ◽  
Author(s):  
Thanawat Thiasiriphet ◽  
Werner G. Teich
Keyword(s):  
Low Power ◽  
Spread Spectrum ◽  
Wide Area ◽  
Wide Area Networks ◽  
Chirp Spread Spectrum ◽  
Spread Spectrum Modulation

Efficient Design of Chirp Spread Spectrum Modulation for Low-Power Wide-Area Networks

2019 ◽  
Vol 6 (6) ◽  
pp. 9503-9515 ◽  
Author(s):  
Tung T. Nguyen ◽  
Ha H. Nguyen ◽  
Robert Barton ◽  
Patrick Grossetete
Keyword(s):  
Low Power ◽  
Spread Spectrum ◽  
Wide Area ◽  
Wide Area Networks ◽  
Efficient Design ◽  
Chirp Spread Spectrum ◽  
Spread Spectrum Modulation

scholarly journals Success Probability Characterization of Long-Range in Low-Power Wide Area Networks

Sensors ◽  
2020 ◽  
Vol 20 (23) ◽  
pp. 6861 ◽  
Author(s):  
Yi-Kang Kim ◽  
Seung-Yeon Kim
Keyword(s):  
Low Power ◽  
Long Range ◽  
Spread Spectrum ◽  
Threshold Model ◽  
Success Probability ◽  
Wide Area ◽  
System Throughput ◽  
Wide Area Networks ◽  
Media Access Control ◽  
Media Access

In low-power wide area networks (LPWAN), a considerable number of end devices (EDs) communicate with the gateway in a certain area, whereas for transmitted data, a low data rate and high latency are allowed. Long-range (LoRa), as one of the LPWAN technologies, considers pure ALOHA and chirp spread spectrum (CSS) in the media access control (MAC) and physical (PHY) layers such that it can improve the energy efficiency while mitigating inter-cell interference (ICI). This paper investigates the system throughput of LoRa networks under the assumption that the interferences between EDs for exclusive regions are ignored using CSS. In order to establish an analytical model for the performance of LoRa, we introduce the pure ALOHA capture model, which is the power threshold model. For this model, we assume that the interfering power is proportional to the length of the time overlapped. In addition, we discuss LoRa gain by comparing the total throughput of LoRa with that of non-CSS.

scholarly journals LORA Technology Basics and Applications

2021 ◽  
pp. 142-146
Author(s):  
Dr. R. Harini
Keyword(s):  
Low Power ◽  
Long Range ◽  
Spread Spectrum ◽  
Wide Area Networks ◽  
Wireless Technology ◽  
Typical Application ◽  
Low Bit Rate ◽  
Iot Applications ◽  
Chirp Spread Spectrum ◽  
Sensor Information

The Long Range (LoRa) technology was first developed by SemTech Company. LoRa is a wireless technology developed for long-range, low-power, low-bit rate and chirp spread spectrum (CSS) radio modulation technology, it also provides the ability to connect to sensors more than 15-30 miles away in rural areas.In this study, we present the LoRa system architecture with the functionality of each component and several typical application scenarios of LoRa network.LoRa is widely used into many applications, such as smart metering, factory monitoring and also it can be used to provide sensor information to communities to provide disaster alerts. LoRa networks allow for very long wireless links that can connect villages and towns. LoRa network is emerging as one of the most promising Low Power Wide Area networks (LPWAN).LPWANs represent a new trend in the evolution of the wireless communication designed to enable broad range of Internet of Things (IoT) applications.

scholarly journals Energy Efficiency in Short and Wide-Area IoT Technologies—A Survey

Technologies ◽  
2021 ◽  
Vol 9 (1) ◽  
pp. 22
Author(s):  
Eljona Zanaj ◽  
Giuseppe Caso ◽  
Luca De Nardis ◽  
Alireza Mohammadpour ◽  
Özgü Alay ◽  
...  
Keyword(s):  
Energy Efficiency ◽  
Internet Of Things ◽  
Low Power ◽  
Energy Efficient ◽  
Wide Area ◽  
Wide Area Networks ◽  
The Internet ◽  
Extensive Review ◽  
Research Directions ◽  
The Internet Of Things

In the last years, the Internet of Things (IoT) has emerged as a key application context in the design and evolution of technologies in the transition toward a 5G ecosystem. More and more IoT technologies have entered the market and represent important enablers in the deployment of networks of interconnected devices. As network and spatial device densities grow, energy efficiency and consumption are becoming an important aspect in analyzing the performance and suitability of different technologies. In this framework, this survey presents an extensive review of IoT technologies, including both Low-Power Short-Area Networks (LPSANs) and Low-Power Wide-Area Networks (LPWANs), from the perspective of energy efficiency and power consumption. Existing consumption models and energy efficiency mechanisms are categorized, analyzed and discussed, in order to highlight the main trends proposed in literature and standards toward achieving energy-efficient IoT networks. Current limitations and open challenges are also discussed, aiming at highlighting new possible research directions.

scholarly journals Low Power Wide Area Networks: A Survey of Enabling Technologies, Applications and Interoperability Needs

IEEE Access ◽  
2018 ◽  
Vol 6 ◽  
pp. 77454-77473 ◽  
Author(s):  
Qahhar Muhammad Qadir ◽  
Tarik A. Rashid ◽  
Nawzad K. Al-Salihi ◽  
Birzo Ismael ◽  
Alexander A. Kist ◽  
...  
Keyword(s):  
Low Power ◽  
Wide Area ◽  
Wide Area Networks ◽  
Enabling Technologies

scholarly journals Adaptive Data Synchronization Algorithm for IoT-Oriented Low-Power Wide-Area Networks

Sensors ◽  
2018 ◽  
Vol 18 (11) ◽  
pp. 4053 ◽  
Author(s):  
Andrea Petroni ◽  
Francesca Cuomo ◽  
Leonisio Schepis ◽  
Mauro Biagi ◽  
Marco Listanti ◽  
...  
Keyword(s):  
Low Power ◽  
Mobile Communications ◽  
Data Exchange ◽  
Energy Savings ◽  
Wide Area ◽  
Wide Area Networks ◽  
Battery Life ◽  
File Synchronization ◽  
The Internet Of Things

The Internet of Things (IoT) is by now very close to be realized, leading the world towards a new technological era where people’s lives and habits will be definitively revolutionized. Furthermore, the incoming 5G technology promises significant enhancements concerning the Quality of Service (QoS) in mobile communications. Having billions of devices simultaneously connected has opened new challenges about network management and data exchange rules that need to be tailored to the characteristics of the considered scenario. A large part of the IoT market is pointing to Low-Power Wide-Area Networks (LPWANs) representing the infrastructure for several applications having energy saving as a mandatory goal besides other aspects of QoS. In this context, we propose a low-power IoT-oriented file synchronization protocol that, by dynamically optimizing the amount of data to be transferred, limits the device level of interaction within the network, therefore extending the battery life. This protocol can be adopted with different Layer 2 technologies and provides energy savings at the IoT device level that can be exploited by different applications.

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