The King is Dead Long Live the King! Towards Systematic Performance Evaluation of Heterogeneous Bluetooth Mesh Networks in Real World Environments Wireless networks based on Bluetooth mesh (BM) promise a variety of Internet of Things applications from healthcare monitoring to smart buildings. BM introduces a novel network concept that supports up to 32767 devices and 127 hops. So far no readily available dataset or toolset exists to perform systematic indepth performance analysis of this standard.In this paper, we present insights on the performance and practical usability of BM. We conduct realistic smart office experiments with heterogeneous devices distributed throughout an area of approximately 1100m2. By varying network parameters and BM node features, we collect the first public available BM dataset. Based on our experience, the use of current implementations is errorprone due to the complexity of BM. To facilitate researchers to conduct further experiments, we propose a toolset to configure and systematically evaluate BM performance. Finally we discuss several pitfalls that should be avoided in designing and deploying such networks.

On the Effect of BLE Beacons on Fast Bluetooth Connection Establishment Scheme Mobile ad hoc networks (MANETs) consist of mobile terminals, such as smartphones or tablets. In Bluetooth MANETs, mobile terminals communicate with each other using Bluetooth without communication infrastructures such as base stations. Therefore, Bluetooth MANETs are deemed to be one of the communication schemes to disseminate data when base stations cannot be used in case of disaster. Since data dissemination capability or network scale that can be built deeply depends on connection establishment performance in Bluetooth MANETs, a fast Bluetooth connection establishment scheme has been proposed to establish Bluetooth connections rapidly. The fast Bluetooth connection establishment scheme combines Classic Bluetooth and Bluetooth Low Energy (BLE), and it has advantages of two different Bluetooth standards. BLE beacons utilize advertising packets of BLE to broadcast data to adjacent terminals. Since the fast Bluetooth connection establishment scheme also utilizes BLE to detect adjacent terminals, it is thought that the radio interference cause delay in detecting adjacent terminals when there are many BLE beacons within wireless range. In this paper, we conducted the simulation experiments in the Bluetooth MANETs environment to evaluate the effects of BLE beacons on the connection establishment by the fast Bluetooth connection establishment scheme.