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Differential modulation using space-time block codes

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2 Author(s)
Ganesan, G. ; Dept. of Syst. & Control, Inf. Technol., Uppsala Univ., Sweden ; Stoica, Petre

We consider a space-time differential modulation scheme where neither the transmitter nor the receiver has to know the channel. Our scheme is based on the theory of unitary space-time block codes. Compared to the existing differential modulation schemes for multiple antennas our scheme has a much smaller computational complexity. Moreover, our codes have a higher coding gain and lower bit error rate than the codes proposed by other researchers.

Published in:

Signal Processing Letters, IEEE  (Volume:9 ,  Issue: 2 )