A 4.4mW-TX, 3.6 mW-RX Fully Integrated Bluetooth Low Energy Transceiver for IoT Applications

This chapter focuses on the comprehensive contents of various applications and principles related to Bluetooth low energy (BLE). The internet of things (IoT) applications like indoor localization, proximity detection problem by using Bluetooth low energy, and enhancing the sales in the commercial market by using BLE have the same database requirement and common implementation idea. The real-world applications are complex and require intensive computation. These computations should take less time, cost, and battery power. The chapter mainly focuses on the usage of BLE beacons for indoor localization. The motive behind the study of BLE devices is that it is supported by mobile smart devices that augment its application exponentially.

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From Bluetooth Low-Energy to Bluetooth No-Energy: System and Circuit Aspects of Energy Harvesting for IoT Applications

Low-Power Analog Techniques, Sensors for Mobile Devices, and Energy Efficient Amplifiers ◽

10.1007/978-3-319-97870-3_2 ◽

2019 ◽

pp. 13-30 ◽

Cited By ~ 1

Author(s):

Wim Kruiskamp

Keyword(s):

Energy Harvesting ◽

Energy System ◽

Low Energy ◽

Bluetooth Low Energy ◽

Iot Applications

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Efficient Communication Scheme for Bluetooth Low Energy in Large Scale Applications

Sensors ◽

10.3390/s20216371 ◽

2020 ◽

Vol 20 (21) ◽

pp. 6371

Author(s):

Maciej Nikodem ◽

Mariusz Slabicki ◽

Marek Bawiec

Keyword(s):

Energy Efficiency ◽

Large Scale ◽

Real Life ◽

Low Energy ◽

Typical Application ◽

Bluetooth Low Energy ◽

Iot Applications ◽

Communication Scheme ◽

Improve Device ◽

The Internet Of Things

The use of Bluetooth Low Energy (BLE) in the Internet-of-Things (IoT) applications has become widespread and popular. This has resulted in the increased number of deployed BLE devices. To ensure energy efficiency, applications use connectionless communication where nodes broadcast information using advertisement messages. As the BLE devices compete for access to spectrum, collisions are inevitable and methods that improve device coexistence are required. This paper proposes a connectionless communication scheme for BLE that improves communication efficiency in IoT applications where a large number of BLE nodes operate in the same area and communicate simultaneously to a central server. The proposed scheme is based on an active scanning mode and is compared with a typical application where passive scanning mode is used. The evaluation is based on numerical simulations and real-life evaluation of a network containing 150 devices. The presented scheme significantly reduces the number of messages transmitted by each node and decreases packet loss ratio. It also improves the energy efficiency and preserves the battery of BLE nodes as they transmit fewer radio messages and effectively spent less time actively communicating. The proposed connectionless BLE communication scheme can be applied to a large variety of IoT applications improving their performance and coexistence with other devices operating in the 2.4 GHz band. Additionally, the implementation complexity and costs of the proposed communication scheme are negligible.

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