Title :
Performance Comparison of the STBC-OFDM Decoders in a Fast Fading Channel
Author :
Li, Chi-Min ; Wu, Jia-Chyi ; Tang, I-Tseng ; Li, Guo-Wei
Author_Institution :
Dept. of Commun. Navig. & Control Eng., Nat. Taiwan Ocean Univ., Keelung
Abstract :
In a fast fading channel, the orthogonality of the two consecutive STBC-OFDM symbols will be destroyed and the received signals can not be perfectly separated. As a result, the bit error rate (BER) performance will be degraded seriously. In this paper, we analyze several CCI cancellation decoders for the STBC-OFDM in a fast fading channel including the Alamouti method, SIC method, ML method, DMLD method and the DZFD method. A simple DZFD method is given to reduce the computational complexity of the DMLD method.
Keywords :
OFDM modulation; block codes; error statistics; fading channels; space-time codes; Alamouti method; CCI cancellation decoders; DMLD method; DZFD method; ML method; SIC method; STBC-OFDM decoders; bit error rate; computational complexity; fast fading channel; orthogonal frequency division multiplexing; space-time block coding; Bit error rate; Block codes; Computational complexity; Decoding; Degradation; Digital video broadcasting; Fading; OFDM; Radiofrequency interference; Receiving antennas;
Conference_Titel :
Intelligent Information Technology Application, 2008. IITA '08. Second International Symposium on
Conference_Location :
Shanghai
Print_ISBN :
978-0-7695-3497-8
DOI :
10.1109/IITA.2008.318
