Title :
Space-time block codes versus space-time trellis codes
Author :
Sandhu, S. ; Heath, R. ; Paulraj, A.
Author_Institution :
Stanford Univ., CA, USA
Abstract :
Two outstanding examples of transmit diversity schemes for the multiple-antenna flat-fading channel are space-time block coding (STBC) and space-time trellis coding (STTC). We compare the performance of STBC and STTC in terms of the frame error rate keeping the transmit power, spectral efficiency and number of trellis states fixed. We discover that a simple concatenation of space-time block codes with traditional AWGN (additive white Gaussian noise) trellis codes outperforms some of the best known space-time trellis codes at SNRs (signal to noise ratios) of interest. Our result holds for a small number of trellis states with one or two receive antennas, and is useful for the design and implementation of multiple-antenna wireless systems
Keywords :
AWGN; block codes; diversity reception; error statistics; fading channels; receiving antennas; trellis codes; AWGN trellis codes; SNR; additive white Gaussian noise; codes concatenation; frame error rate; multiple-antenna flat-fading channel; multiple-antenna wireless systems; receive antennas; signal to noise ratios; space-time block codes; space-time trellis codes; spectral efficiency; transmit diversity; transmit power; trellis states; AWGN; Additive white noise; Block codes; Concatenated codes; Convolutional codes; Decoding; Error analysis; Fading; Modulation coding; Receiving antennas;
Conference_Titel :
Communications, 2001. ICC 2001. IEEE International Conference on
Conference_Location :
Helsinki
Print_ISBN :
0-7803-7097-1
DOI :
10.1109/ICC.2001.936837
