Title
Fast differential unitary space-time demodulation via square orthogonal designs
Document Type
Article
Publication Date
7-1-2005
Abstract
This paper presents a natural concatenation between the real or complex square orthogonal designs and the differential unitary space-time modulation scheme for multiple transmit antennas. This concatenation renders the differential unitary space-time demodulator to detect in a decoupled way the information symbols and hence to have a very low decoding complexity. This fast differential demodulation method for multiple transmit antennas can be regarded as a generalization of the existing differential detection method proposed by Tarokh and Jafarkhani for two and four transmit antennas based on orthogonal designs. By using a systematic matrix-vector representation, a unified and simplified form of differential unitary demodulation via square orthogonal designs for any number of transmit antennas and any transmission rate in bits per channel use is provided. © 2005 IEEE.
Publication Source (Journal or Book title)
IEEE Transactions on Wireless Communications
First Page
1331
Last Page
1336
Recommended Citation
Liang, X., & Xia, X. (2005). Fast differential unitary space-time demodulation via square orthogonal designs. IEEE Transactions on Wireless Communications, 4 (4), 1331-1336. https://doi.org/10.1109/TWC.2005.852145