The Bluetooth wireless communication technology provides wireless solutions applicable for a number of communications needs. In addition, multiple independent piconets are possible and likely to occur within the same location, either intentionally or by chance. Bluetooth devices utilize frequency hopping and independent piconets operate on different hopping sequences. Although the use of indepe...

The arrival of Enhanced Data Rate makes a Bluetooth home entertainment network more likely. However, if arriving IP packets do not account for the Bluetooth packet structure, poor performance will result. A dynamic IP packetization scheme is advocated and shown to overcome Bluetooth’s packet length dependencies. The research is relevant to converged IP networks which use Bluetooth as the wirele...

In our Software Defined Radio SDR project we aim at combining two different types of standards, Bluetooth and HiperLAN/2 on one common hardware platform. Goal of our project is to generate knowledge about designing the front end of an SDR system (from the antenna signal to the channel bit stream) where especially an approach from both analog and digital perspective is essential. Bluetooth uses ...

Bluetooth-technology enables objects to communicate with each other, humans to communicate with each other, and humans to communicate with objects. This paper discusses some possible ways to develop context awareness to enhance the Bluetooth-devices ability to "guess" the groups that Bluetooth (end) user is seeing and using at each moment.

This report presents a brief overview and classification of intra-piconet polling schemes for Bluetooth piconets. It also presents a similar overview and classification of bridge scheduling algorithms for Bluetooth scatternets. Some additional issues, in particular the transmission of TCP/IP traffic over Bluetooth, and segmentation and reassembly policies, are discussed as well.

Bluetooth can form many piconets and scatternets within close proximity. This network topology can cause self channel interferences. As the interference increases, the performance will be degraded. The effect of interference is critical when a lot of Bluetooth networks coexist. In this paper, the performances of Bluetooth networks under interference is analyzed and simulated using the concept o...

Research has shown that significant degradation in performance can occur even when operating within the limits for carrier frequency and modulation index offsets permitted by the Bluetooth standard. This is even more severe for multi-bit detectors like the matched filter bank receiver, because such errors accumulate across a longer observation interval. This paper details the derivation of a st...

The paper describes the MID-Blue (Multimedia Information Distribution over Bluetooth) system architecture as a dynamic guidance system for museum visitors based on Bluetooth connection. It provides specific contents related to the user position also using streaming video. This feature is still not diffused among Bluetooth technologies and could be more useful than other alternative solutions in...

We discuss our tools and techniques to monitor and inject packets in Bluetooth Low Energy. Also known as BTLE or Bluetooth Smart, it is found in recent high-end smartphones, sports devices, sensors, and will soon appear in many medical devices. We show that we can effectively render useless the encryption of any Bluetooth Low Energy link.

Bluetooth is currently emerging as one of the most promising personal wireless network technologies. The automation industry is also showing interest in using Bluetooth for more industrial applications. However, problems with unreliable links and time delays must be explicitly addressed in any wireless control application. This paper discusses two specific problems that may occur when using Blu...