Title :
Performance of 2IMO differentially transmitdiversity block coded OFDM systems in doubly selective channels
Author :
Chiang, Ping-Hung ; Lin, Ding-Bing ; Li, Hsueh-Jyh
Author_Institution :
Graduate Inst. of Commun. Eng., Nat. Taiwan Univ., Taipei
Abstract :
By applying the differential space-time block coding in wireless multicarrier transmission, Diggavi et al. proposed the two-input-multiple-output (2IMO) differentially space-time-time block coded OFDM (TT-OFDM) system. In this paper, we recommend three novel differentially transmit-diversity block coded OFDM (DTDBC-OFDM) systems, namely, the FT-, FF-, and TF-OFDM systems. For instance, the TF-OFDM stands for the differentially space-time-frequency block coded OFDM. Moreover, the noncoherent maximum-likelihood sequence detector (NSD), and its three special cases, namely, the noncoherent one-shot detector, linearly predictive decision-feedback (DF) detector, and linearly predictive Viterbi receiver are incorporated to the 2IMO DTDBC-OFDM systems
Keywords :
MIMO systems; OFDM modulation; automatic repeat request; block codes; channel coding; diversity reception; matrix algebra; maximum likelihood detection; modulation coding; space-time codes; Viterbi receiver; differential space-time block coding; differentially transmit-diversity block coded OFDM systems; doubly selective channels; linearly predictive decision-feedback detector; noncoherent maximum-likelihood sequence detector; noncoherent one-shot detector; space-time-time block coded OFDM system; two-input-multiple-output; wireless multicarrier transmission; Block codes; Channel state information; Data engineering; Degradation; Detectors; Fading; HDTV; Maximum likelihood detection; OFDM modulation; Viterbi algorithm;
Conference_Titel :
Global Telecommunications Conference, 2005. GLOBECOM '05. IEEE
Conference_Location :
St. Louis, MO
Print_ISBN :
0-7803-9414-3
DOI :
10.1109/GLOCOM.2005.1578475
