DocumentCode
3567246
Title
A general approach to differential transmit diversity
Author
Hughes, Brian L.
Author_Institution
Dept. of Electr. & Comput. Eng., North Carolina State Univ., Raleigh, NC, USA
Volume
1
fYear
1999
Firstpage
627
Abstract
We consider the design of transmit diversity techniques that do not require channel estimates at the transmitter or receiver. We propose a general approach to differential modulation for multiple transmit antennas based on groups of unitary matrices. This approach can be applied to any number of transit antennas and any signal constellation. We further design optimal differential transmit diversity schemes for the particular case of two transmit antennas.
Keywords
diversity reception; group codes; matrix algebra; modulation; multipath channels; optimisation; transmitting antennas; QPSK; differential modulation; multipath fading channels; multiple transmit antennas; optimal differential transmit diversity; signal constellation; unitary group codes; unitary matrices; Block codes; Channel estimation; Costs; Differential quadrature phase shift keying; Fading; Frequency shift keying; Receiving antennas; Space time codes; Transmitters; Transmitting antennas;
fLanguage
English
Publisher
ieee
Conference_Titel
Signals, Systems, and Computers, 1999. Conference Record of the Thirty-Third Asilomar Conference on
ISSN
1058-6393
Print_ISBN
0-7803-5700-0
Type
conf
DOI
10.1109/ACSSC.1999.832405
Filename
832405
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