Title :
High-rate space-time layered OFDM
Author :
Xin, Yan ; Giannakis, Georgios B.
Author_Institution :
Dept. of Electr. & Comput. Eng., Minnesota Univ., Minneapolis, MN, USA
fDate :
5/1/2002 12:00:00 AM
Abstract :
We derive a layered space-time scheme for multi-antenna orthogonal frequency-division multiplexed transmissions over frequency-selective channels. Compared with existing alternatives, the proposed scheme can attain very high spectral efficiency as well as improved performance. Enhanced diversity gains document its superior performance that is also tested by simulation.
Keywords :
OFDM modulation; antenna arrays; diversity reception; fading channels; spectral analysis; decoding; diversity gain; fading channel; frequency-selective channels; high-rate space-time layered OFDM; linear precoding; multi-antenna systems; orthogonal frequency-division multiplexing; simulation; space-time coding; spectral efficiency; Block codes; Decoding; Diversity methods; Frequency division multiplexing; Frequency-selective fading channels; Intersymbol interference; OFDM; Performance loss; Propagation losses; Testing;
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/4234.1001659
