1,720,974 research outputs found
A BLE-based multi-gateway network infrastructure with handover support for mobile BLE peripherals
No full textDistributed automated testing framework for Bluetooth mesh applications
Full text linkWe introduce a comprehensive testing framework built on top of a Bluetooth Mesh Testbed, showcasing a blend of user-friendly design, swift implementation, and adaptability to diverse testing scenarios and technologies. The framework's modular architecture ensures syntactic validation, precise event scheduling, and efficient execution. Its well-defined syntax facilitates easy updates, catering to evolving requirements and maintaining agility. Operating independently across multiple nodes and accommodating various events, whether repetitive or one-time, the framework proves to be a versatile and robust solution for conducting tests. Tools like shared disks and synchronized clocks, provided by the Testbed, further enhance the framework's capability to schedule network flow behavior and gain insights into network performance. Overall, our testing framework presents a valuable tool for researchers and practitioners seeking a seamless and flexible approach to evaluate Bluetooth Mesh networks in a realistic environment
A digital communication twin for performance prediction and management of bluetooth mesh networks
No full textRelay selection in Bluetooth Mesh networks by embedding genetic algorithms in a Digital Communication Twin
Full text linkManaging a QoS-enabled bluetooth mesh network using a digital twin network : an experimental evaluation
No full textBluetooth Mesh technology adds mesh topology capabilities to the Bluetooth ecosystem. To facilitate a more widespread deployment of Bluetooth Mesh networks within use cases that require meshing capabilities, it is important to strive towards an efficient management solution, based upon a variety of optimization strategies. This paper evaluates a novel approach leveraging the capabilities of a Digital Twin Network to enhance the performance of a Quality -of -Serviceenabled Bluetooth Mesh network. The study explores various configurations, either based on expert -knowledge, algorithmically suggested or determined using the Digital Twin Network. Through a comprehensive evaluation process, the paper analyzes key metrics across these configurations. Notably, the Digital Twin Network -based configurations demonstrate robust performance, outperforming other configurations even in scenarios with concurrent application flows. The findings highlight the potential of the Digital Twin Network to effectively manage Bluetooth Mesh networks of diverse complexity and expose future research opportunities regarding reporting and monitoring overhead
QoS enabled heterogeneous BLE mesh networks
Full text linkBluetooth Low Energy (BLE) is a widely known short-range wireless technology used for various Internet of Things (IoT) applications. Recently, with the introduction of BLE mesh networks, this short-range barrier of BLE has been overcome. However, the added advantage of an extended range can come at the cost of a lower performance of these networks in terms of latency, throughput and reliability, as the core operation of BLE mesh is based on advertising and packet flooding. Hence, efficient management of the system is required to achieve a good performance of these networks and a smoother functioning in dense scenarios. As the number of configuration points in a standard mesh network is limited, this paper describes a novel set of standard compliant Quality of Service (QoS) extensions for BLE mesh networks. The resulting QoS features enable better traffic management in the mesh network, providing sufficient redundancy to achieve reliability whilst avoiding unnecessary packet flooding to reduce collisions, as well as the prioritization of certain traffic flows and the ability to control end-to-end latencies. The QoS-based system has been implemented and validated in a small-scale BLE mesh network and compared against a setup without any QoS support. The assessment in a small-scale test setup confirms that applying our QoS features can enhance these types of non-scheduled and random access networks in a significant way
Evaluation of BLE-based audio broadcasting under probabilistic interference
No full textWireless Bluetooth audio communication has become an inherent part of everyday life, from listening to a podcast on our headphones to streaming music on multiple speakers. Up until now, broadcasting audio to multiple receivers has always required a proprietary implementation. Therefore, recent advances in the specification allow Broadcast Audio streams to be set up on top of Bluetooth Low Energy (BLE). To cope with the unpredictability of wireless media, audio frame retransmission opportunities are provided. However, determining the applicable number of retransmissions for a broadcast stream that is exposed to volatile environmental conditions, is a complex research challenge. This paper presents a model that is capable of simulating a BLE broadcast stream schedule, exposed to various environmental conditions while using a variable number of audio frame retransmissions. The evaluation employs several existing Packet Loss Concealment (PLC) techniques to cope with audio frame losses. The results provide insights into the impact of various frame loss patterns on the audio quality and intelligibility of broadcasted speech. The more advanced PLC techniques can handle a higher frame loss rate threshold. The analysis also shows that large audio frames requiring fragmentation exhibit a higher amount of frame loss for the same BLE packet loss rate and that overlap with in-use 802.11 channels can lead to a large variability in frame loss behavior. The model provides a baseline for the next research challenge related to continuous management of Broadcast Audio streams operating under volatile environmental conditions
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