Title :
Blind channel estimation for repetition coded OFDM in block Rayleigh fading
Author :
Ma, Yi ; Huang, Yi ; Liu, Fei ; Yi, Na
Author_Institution :
Dept. of Electr. Eng. & Electron., Liverpool Univ., UK
Abstract :
The family of repetition coded (RC) multicarrier system has a few members, such as multicarrier code division multiple access and intercarrier interference self-canceling scheme etc. This paper investigates three modes of the RC-OFDM system in the presence of unknown block fading channel. Relying on the code redundance, blind channel identification and equalization algorithms are developed. In the multitransmitter system, frequency-domain optimum precedes are proposed to solve the channel ambiguity. Simulation results are provided to corroborate the theoretical analysis.
Keywords :
OFDM modulation; Rayleigh channels; blind equalisers; channel estimation; frequency-domain analysis; modulation coding; radio transmitters; OFDM; Rayleigh fading; blind channel estimation; block fading channel; channel equalization algorithms; channel identification algorithms; code redundance; multitransmitter system; orthogonal frequency division multiplexing; repetition coded multicarrier system; Blind equalizers; Discrete transforms; Fading; Interference; Matrix converters; Multicarrier code division multiple access; OFDM; Rayleigh channels; Transmitters; Vectors;
Conference_Titel :
Global Telecommunications Conference, 2003. GLOBECOM '03. IEEE
Print_ISBN :
0-7803-7974-8
DOI :
10.1109/GLOCOM.2003.1258197
