Title :
Rate-one space-frequency block codes with maximum diversity for MIMO-OFDM
Author :
Shao, Lei ; Roy, Sumit
Author_Institution :
Univ. of Washington, Seattle, WA, USA
fDate :
7/1/2005 12:00:00 AM
Abstract :
We propose a novel rate-one (i.e., one symbol per transmission), space-frequency block code (SFBC) for an orthogonal frequency division multiplexing (OFDM) system with transmit (M), and receive (N) antennas that achieves the maximum diversity attainable over frequency-selective channels. Moreover, the space-frequency (SF) code design is shown to be robust to overestimation of the (true) channel order L at the price of increasing decoding complexity. Further, even if the channel order is underestimated (K\n\n\t\t
Keywords :
MIMO systems; OFDM modulation; block codes; channel coding; channel estimation; diversity reception; receiving antennas; space-time codes; transmitting antennas; MIMO-OFDM; channel estimation; decoding complexity; frequency-selective channel; maximum diversity; orthogonal frequency division multiplexing; rate-one space-frequency block code; receive antenna; space-time-frequency block code; transmit antenna; Block codes; Costs; Decoding; Delay; Frequency diversity; MIMO; OFDM; Receiving antennas; Robustness; Transmitting antennas; MIMO; OFDM; space–frequency block codes; space–time block codes;
Journal_Title :
Wireless Communications, IEEE Transactions on
DOI :
10.1109/TWC.2005.850374
