A Crystal-Less BLE Transmitter With Clock Recovery From GFSK-Modulated BLE Packets

Chen, Xing; Alghaihab, Abdullah; Shi, Yao; Truesdell, Daniel S.; Calhoun, Benton H.; Wentzloff, David D.

doi:10.1109/jssc.2020.3046610

Cited by 9 publications

(4 citation statements)

References 15 publications

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“…Stemming from ISO 18000-7 Radio-frequency Identification (RFID) [58], DASH7 [59], [60] is an open-source LPWAN standard proposed by DASH7 Alliance. With the modulation technique of Gaussian Frequency Shift Keying (GFSK) [61], DASH7 operates in the sub-GHz ISM bands including 433 MHz, 868 MHz and 915MHz. It is designed for ultra-low-power sensor-actuator applications where sensors can report data and actuators can receive commands typically within a latency of 1 second but only consuming 30 uA on average.…”

Section: ) Dash7mentioning

confidence: 99%

A Survey on LPWAN-5G Integration: Main Challenges and Potential Solutions

Sambo

Onireti

et al. 2022

IEEE Access

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The popularity of Internet of Things (IoT) has resulted in increased deployments of Low Power Wide Area (LPWA) technologies for both commercial and private services due to their performance and cost advantages. Although Low Power Wide Area Networks (LPWANs) have the advantages of low power consumption, wide coverage, low-cost and scalability, they generally have lower data rates and lower reliability, thus limiting their suitability for a wider range of industrial use cases such as process control and high data rate multimedia applications. To overcome this, LPWA technologies can be integrated into 5G, a flexible, scalable, agile and programmable mobile communication system. In this paper, we provide a survey on LPWAN-5G integration focusing on the main integration challenges and potential solutions. We firstly compare popular licensed and unlicensed LPWA technologies, and then introduce the 5G architecture and enabling technologies for LPWAN-5G integration. Finally, we discuss in detail the challenges and potential solutions of LPWAN-5G integration, covering all the important aspects including hybrid architecture, security, mobility, interoperability between LPWANs, and coexistence with other wireless technologies. From our analysis, it can be seen that LPWAN-5G integration tends to evolve from access network to core network.INDEX TERMS 5G, cellular, converged core network, the Internet of Things, low power wide area network.

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Section: ) Dash7mentioning

confidence: 99%

A Survey on LPWAN-5G Integration: Main Challenges and Potential Solutions

Sambo

Onireti

et al. 2022

IEEE Access

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“…Further performance gains in terms of power and size reduction could be achieved based on state-of-the-art solid-state transceiver circuits. To explain, low-power single-chip 2.4 GHz transceivers have been proposed [49], which could integrate with the printed antenna for pervasive deployment. By measuring the sensor nodes' unloaded RSS and then monitoring the time-varying RSS, the build-up of ice could be rapidly detected even during temporal LoS shadowing, as seen in Fig.…”

Section: Rf Ice Sensing In Future Wireless Sensor Networkmentioning

confidence: 99%

Toward the Optimal Antenna-Based Wireless Sensing Strategy: An Ice Sensing Case Study

Wagih

Shi

2022

IEEE Open J. Antennas Propag.

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Remote ice detection has emerged as an application of Radio Frequency (RF) sensors. While antenna-based "RFID" sensing can detect various measurands, antenna-based sensors are not currently designed based on a systematic methodology, and in most cases may have a low sensitivity requiring specialist hardware or broadband interrogation signals, incompatible with spectrum regulations. Here, we develop a systematic methodology for designing an antenna-based sensor, applicable to measurands inducing a dielectric change in the near-field of the antenna. The proposed methodology is applied to designing printable antennas as highly-sensitive sensors for detecting and measuring the thickness of ice, demonstrating best-in-class sensory response compared to more complex antenna designs. Antenna design is investigated systematically for wireless interrogation in the 2.4 GHz band, where it is found that a loop antenna outperforms a dipole owing to its more distributed capacitance. The antenna's realized gain was identified as the optimum parameter-under-test, with "positive" sensing proposed as a method of improving linearity and immunity to interference. The developed loop antenna sensor exhibits resilience to interference and applicability to different real-world deployment environments, demonstrated through over 80% average ice thickness measurement accuracy and at least 5 dB real-time sensitivity to ice deposition.

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“…Recent work focuses on removing the crystal oscillator (XO) in BLE transmitters [57][58][59]. The XO is one of the most expensive off-chip components in a BLE module.…”

Section: Reduction Of On-chip/off-chip Componentsmentioning

confidence: 99%

Bluetooth Communication Leveraging Ultra-Low Power Radio Design

Abdelatty

Xing

Alghaihab

et al. 2021

JSAN

Self Cite

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Energy-efficient wireless connectivity plays an important role in scaling both battery-less and battery-powered Internet-of-Things (IoT) devices. The power consumption in these devices is dominated by the wireless transceivers which limit the battery’s lifetime. Different strategies have been proposed to tackle these issues both in physical and network layers. The ultimate goal is to lower the power consumption without sacrificing other important metrics like latency, transmission range and robust operation under the presence of interference. Joint efforts in designing energy-efficient wireless protocols and low-power radio architectures result in achieving sub-100 μW operation. One technique to lower power is back-channel (BC) communication which allows ultra-low power (ULP) receivers to communicate efficiently with commonly used wireless standards like Bluetooth Low-Energy (BLE) while utilizing the already-deployed infrastructure. In this paper, we present a review of BLE back-channel communication and its forms. Additionally, a comprehensive survey of ULP radio design trends and techniques in both Bluetooth transmitters and receivers is presented.

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A Crystal-Less BLE Transmitter With Clock Recovery From GFSK-Modulated BLE Packets

Cited by 9 publications

References 15 publications

A Survey on LPWAN-5G Integration: Main Challenges and Potential Solutions

A Survey on LPWAN-5G Integration: Main Challenges and Potential Solutions

Toward the Optimal Antenna-Based Wireless Sensing Strategy: An Ice Sensing Case Study

Bluetooth Communication Leveraging Ultra-Low Power Radio Design

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