Bluetooth Low Energy (BLE) is a recently developed energy-efficient short-range wireless communication protocol. In this paper, we discuss and compare the maximum peer-to-peer throughput, the minimum frame turnaround time, and the energy consumption for three protocols, namely BLE, IEEE 802.15.4 and SimpliciTI. The specifics and the main contributions are the results both of the theoretical analysis and of the empirical measurements, which were executed using the commercially available hardware transceivers and software stacks. The presented results reveal the protocols’ capabilities and enable one to estimate the feasibility of using these technologies for particular applications. Based on the presented results, we draw conclusions regarding the feasibility and the most suitable application scenarios of the BLE technology.

Bluetooth Low Energy (BLE) is one of the recently developed protocols enabling energy-efficient short-range radio communication. One of limitations of BLE is the support for data transferring over only a single hop. In the paper, we suggest the mechanism enabling the multihop data transfers between the nodes in BLE networks. To ensure portability, the suggested mechanism is designed as BLE service, which uses only the integral components of BLE stack. We discuss in details the suggested multihop service, its implementation and present the results of evaluation, which confirm feasibility and reveal features of the suggested solution. To the best of our knowledge, this paper reports the first implementation of the multihop data transfer over the BLE networks.

In this paper, the design and development of wireless sensor and actuator networks that enable Internet-of-Things (IoT) solutions are investigated from the perspective of cognitive infocommunications. The reasons, requirements, and issues related to adaptive systems and architectures are presented, and the corresponding intra-cognitive and inter-cognitive communications are examined. The current and future roles of infocommunications in the design of IoT solutions are indicated via several case experiments in different application domains.

The paper summarizes the results of the RealFusion project. One of the main objectives of this project was to study the Wireless Sensor Networks (WSN) in real-life industrial environment. The results for the evaluation of different radios utilizing 433 MHz, 868 MHz and 2.4 GHz license-free industrial, scientific and medical (ISM) bands in real-life industrial environment are presented in the paper. Also, the paper discusses the results of development and evaluation of two real-life industrial WSN use cases: the WSN for remote monitoring the amount of bulk substances in the silos of a refractory materials factory and the WSN for remote warehouse monitoring.