Title :
A Doppler estimation for UMTS-FDD based on channel power statistics
Author :
Mottier, David ; Castelain, Damien
Author_Institution :
Mitsubishi Electr. ITE, Rennes, France
Abstract :
A Doppler estimation based on a statistical analysis of the channel power variations is proposed for the frequency division duplex (FDD) mode of Universal Mobile Telecommunication Systems (UMTS). Its implementation is considered in both cases of constant power and closed-loop power controlled transmissions. Performance is analyzed in terms of velocity estimation error under various conditions of speed, estimation delay and signal-to-interference-plus-noise ratio (SINR). The influence of a SINR-based power channel estimation is also taken into account. Results show the reliability of this Doppler estimation technique that yields estimates with less than 15 km/h error in a velocity range from 0 km/h to 100 km/h. Results also present the impact of the closed-loop power control on the Doppler estimation reliability
Keywords :
cellular radio; closed loop systems; delays; estimation theory; frequency division multiplexing; power control; statistical analysis; telecommunication control; telecommunication network reliability; 0 to 100 km/h; Doppler estimation; SINR; UMTS-FDD; Universal Mobile Telecommunication Systems; channel power statistics; closed-loop power control; constant power; estimation delay; frequency division duplexing; performance analysis; reliability; signal-to-interference-plus-noise ratio; statistical analysis; velocity estimation error; 3G mobile communication; Delay estimation; Frequency conversion; Frequency estimation; Performance analysis; Signal analysis; Statistical analysis; Statistics; Telecommunication control; Yield estimation;
Conference_Titel :
Vehicular Technology Conference, 1999. VTC 1999 - Fall. IEEE VTS 50th
Conference_Location :
Amsterdam
Print_ISBN :
0-7803-5435-4
DOI :
10.1109/VETECF.1999.800348
