Title :
A scheme for the Doppler shift estimation despite the power control in mobile communication systems
Author :
Jingyu, Hua ; Xiaohu, You ; Bin, Sheng ; Kim, Yun Hee
Author_Institution :
Dept. of Radio Eng., Southeast Univ., Nanjing, China
Abstract :
The characteristics of phase difference in a time-varying channel are analyzed then the Doppler shift of the time-varying multi-path channel is estimated by calculating the expectation of the square phase difference of the channel coefficient estimates on the effective fingers. Also we recommend an improved estimation method to get a high estimation accuracy in a wide range of velocity and SNR (signal-to-noise ratio).
Keywords :
Doppler shift; channel estimation; mobile radio; multipath channels; time-varying channels; Doppler shift estimation; SNR; channel coefficient estimate square phase difference; channel phase difference characteristics; mobile communication systems power control; mobile terminal velocity estimation; multipath channel; time-varying channel; Doppler shift; Fading; Frequency; Gaussian noise; Mobile communication; Phase estimation; Power control; Power engineering and energy; Signal to noise ratio; Time varying systems;
Conference_Titel :
Vehicular Technology Conference, 2004. VTC 2004-Spring. 2004 IEEE 59th
Print_ISBN :
0-7803-8255-2
DOI :
10.1109/VETECS.2004.1387959
