Title :
Channel estimation for adaptive OFDM system and effects of estimation error on system performance
Author :
Hou, Chunping ; Song, Shenghui ; Cao, Dazhong
Author_Institution :
Sch. of Electron. Inf. Eng., Tianjin Univ., China
Abstract :
Two pilots aided channel estimation methods, which use time-frequency and frequency-transform domain methods, are proposed. Their performances were contrasted by using them in the same channel conditions, and their favorite application environments were analyzed. The time-frequency method is used in an adaptive OFDM system in assistance of the channel and bit allocations. Through comparison, the effect of estimation error on system performance is studied.
Keywords :
OFDM modulation; adaptive systems; channel estimation; error analysis; land mobile radio; time-frequency analysis; adaptive OFDM system; bit allocation; channel allocation; channel conditions; channel estimation; estimation error; frequency-transform domain method; mobile communications; system performance; time-frequency domain method; Adaptive systems; Channel estimation; Delay; Estimation error; Mobile communication; OFDM modulation; Performance gain; System performance; Time frequency analysis; Transfer functions;
Conference_Titel :
Mobile and Wireless Communications Network, 2002. 4th International Workshop on
Print_ISBN :
0-7803-7605-6
DOI :
10.1109/MWCN.2002.1045722
