An analytical model for estimating the delay in Bluetooth communications with serial port profile
M. J. Morón, R. Luque, E. Casilari, Antonio Díaz Estrella · 2009
Bluetooth is currently a major technology for the deployment of wireless short range communications. This paper presents an analytical model to compute the delay of Bluetooth transmissions with Serial Port Profile (SPP), which is nowadays widely utilized by commercial Bluetooth-enabled devices. In particular, the proposed equations permit to estimate the packet delay in ideal transmission conditions (when no retransmission occurs) and also when environmental noise induces losses and consequently there exist a certain probability that a packet has to be retransmitted. The model takes into consideration the overhead and segmentation introduced by the protocols involved in the transmission as well as the extra delay introduced by the retransmissions. The model has been empirically validated through the measurements of Bluetooth connections in an actual test-bed.