Bluetooth and IEEE 802.11b coexistence: analytical performance evaluation in fading channels

Abstract

In this paper, the issue of Bluetooth and IEEE802.11b coexistence in a heterogeneous environment is addressed by means of an integrated analytical approach. The methodology proposed carefully takes both physical (i.e., thermal noise, propagation, interference, modulation formats, and coding techniques) and medium access control (frequency hopping, packet structures, traffic loads) aspects into account. This model can be easily implemented when developing network simulators, thus avoiding the need of extensive bit level Monte Carlo simulations at the physical level. The mean packet error probability is evaluated as a function of the relative distance between the two systems for different conditions (e.g., propagation, packet type, traffic loading, etc). In particular, how the presence or absence of line-of-sight propagation significantly affects the coexistence distance is emphasized. Furthermore, for a fixed quality-of-service level we derive the coexistence domain of the two considered systems in terms of relative distance

Optimization of Bluetooth Frame Format for Efficient Performance

“…The codeword error probability is a function of t which is the number of errors that can be corrected by the code, n which is the codeword length, and m which is the number of codewords. To find the error probability over the whole frame, we use the following equation [7,8]:…”

“…Several researchers have investigated the issue of error control code design for Bluetooth systems [7]. Most of them have come to the conclusion that error control codes implemented for this task are not powerful for fading channels [8].…”

An Integrated Ecg Compression and Error Protection Scheme for Bluetooth Transmission in Home Tele-Care Applications

“…Although the BT standard has specified a simple FEC technique to combat the interference, it does not have enough error correcting capability to combat the potential high-level interference from WLAN [13]. When the SNR at a BT device is low and the WLAN interference is strong, the packet error probability will increase significantly.…”

WiFlex: Multi-Channel Cooperative Protocols for Heterogeneous Wireless Devices

“…A costly bridge device with two types of radios are necessary to allow different kinds of devices to communicate. In addition, incompatible devices sharing the same spectrum degrade each other's performance, as reported in the literature [2], [3], [4], [5], [6], [7]. Some devices may even starve others.…”