Title :
Space-time block coded transmit diversity for OFDM system in mobile channels
Author :
Cheng, Jian ; Wang, Haifeng ; Cheng, Shixin
Author_Institution :
Nat. Mobile Commun. Res. Lab., Southeast Univ., Nanjing, China
Abstract :
In this paper, two kinds of space-time block coded transmit diversity are proposed for OFDM system in mobile channels. One is in time domain and at least one frame (one symbol) delay is needed for the decoding algorithm; the other is in frequency domain so it also can be termed as space-frequency coded (SFC) transmit diversity more concisely, and no delay is needed for the decoding algorithm. We simulate the performance of these kinds of space-time block coded transmit diversity, the space-time trellis coded transmit diversity with 4- and 16-state are also simulated to give out a performance comparison with space-time block coded transmit diversity in this paper.
Keywords :
OFDM modulation; block codes; decoding; mobile communication; space-time codes; trellis coded modulation; OFDM system; decoding algorithm; frame delay; frequency domain; mobile channels; space-frequency coded transmit diversity; space-time block coded transmit diversity; space-time trellis coded transmit diversity; time domain; Block codes; Decoding; Delay effects; Diversity reception; Fading; Mobile communication; OFDM; Space technology; Transmitting antennas; Viterbi algorithm;
Conference_Titel :
Personal, Indoor and Mobile Radio Communications, 2002. The 13th IEEE International Symposium on
Print_ISBN :
0-7803-7589-0
DOI :
10.1109/PIMRC.2002.1046690
