Title :
Unitary signal constellations for differential space-time modulation
Author :
Hajiaghayi, Mahdi ; Tellambura, Chintha
Author_Institution :
Dept. of Electr. & Comput. Eng., Alberta Univ., Edmonton, Alta.
Abstract :
In this letter, we introduce two matrix-signal constellations for differential unitary space time modulation. We also derive an approximation of the upper bound on the symbol error probability. The new constellations generalize several previously reported constellations and yield better performance when the number of transmitter antennas and the constellation size increase
Keywords :
approximation theory; error statistics; matrix algebra; modulation coding; space-time codes; transmitting antennas; differential unitary space time modulation; matrix-signal constellation; symbol error probability; transmitting antenna; upper bound approximation; Constellation diagram; Error probability; Pairwise error probability; Receiving antennas; Signal design; Signal to noise ratio; Space time codes; Transmitters; Transmitting antennas; Upper bound;
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/LCOMM.2007.061133
