Adaptive rate communication system based on new DECT standard

An adaptive rate communication system based on the new DECT standard is evaluated. One of the three modulated signals, namely /spl pi//2-D2PSK, /spl pi//4-D4PSK and /spl pi//8-D8PSK, is chosen for transmission, according to the channel conditions estimated by the Euclidean distance between the received and detected signals. The simulations show that the adaptive rate DECT system tracks a slowly varying fading channel with Rayleigh distribution in the case of low mobile unit speed. The achieved data throughput is up to three times higher in comparison to the fixed rate DECT communication system. It is shown also that in the presence of cochannel interference, the Euclidean distance switching approach is superior to the RSSI approach.