Measurement and analysis of the digital DECT propagation channel

In this paper, an experimental setup is presented, to measure bit error patterns over a DECT indoor radio channel. A prefixed bit sequence has been exchanged on the air between a mobile and a fixed part, using a DECT modem. DECT interferers were active in the environment during the experiments. Error patterns have been obtained from received sequences, aligning and comparing them with the transmitted ones. They have been stored in real time on a mass memory, by means of a data acquisition board, built for this purpose. Some results are shown, inherent to the packet error distribution (PED) and to the burst and interburst length distributions, obtained from the acquired database. Finite state Markov channel models have been determined, using measurement conditions, to reproduce and verify empiric results.