An Optimized algorithm for device discovery using BLE

Yan Zhang, Zheng Song, Wendong Wang, Ye Tian
2016 Proceedings of the 2016 4th International Conference on Machinery, Materials and Information Technology Applications   unpublished
There are more and more mobile smart devices with high capabilities in both computing and storage, which leading to the device cooperation in vicinity becomes popular. As the first step in the device cooperation, the device discovery process is particularly important. Because of the mobility of the devices and the limitation of the energy, how to perform the device discovery process efficiently is the key of the device cooperation. However, the devices support not only one type of wireless
more » ... pe of wireless communication modules, choose which module to perform the device discovery is the first issue to think about. This paper compares the existing wireless communication technologies and find the suitable method. Then proposes an optimized algorithm for the device discovery using Bluetooth Low Energy (BLE). Introduction Mobile smart devices are more and more popular, such as smart phones, smart watches and so on. And the capabilities of mobile smart devices have been greatly improved: such as computing capability, storage capacity, making the smart devices not only as client to request services from the server, but can serve as server to provide appropriate services. This leads to the popularity of smart device cooperation in vicinity. Owing to the device discovery process is the first step in device cooperation, so it is especially important. The current mobile devices support a variety of wireless network communication interfaces. Therefore, performing the device discovery process more efficiently using the suitable wireless communication technology is the first and important step. In this paper, we compare the device discovery with various wireless communication methods and select the optimal wireless communication method firstly. Then we propose an optimized algorithm for device discovery through Bluetooth Low Energy (BLE) and do experiments to verify the algorithm finally. Related Work Existing wireless communication technologies include Bluetooth/BLE [1], [2], WiFi/WiFiP2P [3], NFC [4], Zigbee [5], etc. However, in most Android, iPhone, and other smart devices, only NFC, WiFi/WiFiP2P and Bluetooth/BLE modules are mounted. Owing to the range of the nearby devices cooperation is about tens of meters, which makes the corresponding wireless communication technologies should communicate among tens of meters. According to the research of NFC [4], the communication range of NFC is less than or equal to 0.1 meters, and the traditional Bluetooth is about 10 meters. The limitation of communication range lead to the fact that NFC and Bluetooth are not suitable for device discovery in nearby device cooperation. As the communication range of BLE and WiFi is nearly 100 meters, they are both suitable for device discovery process. As is introduced in [6], WiFi/WiFiP2P have higher data transmission rate, but consume more energy per unit working time. On the other hand, BLE consume less energy in unit time, but have much lower data transmission rate [7]. [8] and [9] propose an eDiscovery
doi:10.2991/icmmita-16.2016.23 fatcat:5xq72kcce5dhbpvpnjovhsv4yq