Results 261 to 270 of about 1,000,936 (330)

Differential transmit diversity based on quasi-orthogonal space-time block code

IEEE Global Telecommunications Conference, 2004. GLOBECOM '04., 2004
By using joint modulation and a customized constellation set, we show that quasi-orthogonal space-time block coding (QO-STBC) can be used to form a new differential space-time modulation (DSTM) scheme to provide full transmit diversity with non-coherent ...
C. Yuen, Y. Guan, T. Tjhung
semanticscholar   +1 more source

Linear toeplitz space time block codes

Proceedings. International Symposium on Information Theory, 2005. ISIT 2005., 2005
In this paper we consider coherent flat fading wireless communication systems with multiple transmitter antennas and single receiver antenna (MISO). We propose a Toeplitz linear space time block code (STBC) that converts an original MISO flat fading channel into a Toeplitz virtual multiple inputs multiple outputs (MIMO) channel.
null Jian-Kang Zhang, null Jing Liu, null Kon Max Wong   +2 more
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Multilevel concatenated space-time block codes

2010 International Conference on System Science and Engineering, 2010
An alternative design for constructing multilevel space-time codes is proposed. For a given space-time block code, we combine several component codes in conjunction with set partitioning of the expanded signal constellation according to the coding gain distance criterion.
null Shang-Chih Ma, null Chia-Hao Lin
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Noncoherent space-time block coded modulation

2004 IEEE International Conference on Communications (IEEE Cat. No.04CH37577), 2004
Unitary space-time modulation is well tailored for flat fading channels where the noncoherent receiver is used. In this paper, we propose a novel scheme of unitary space-time modulation, called noncoherent space-time block coded modulation, by using the set partitioning of signal sets and multilevel coding.
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A quasi-orthogonal space-time block code

2000 IEEE Wireless Communications and Networking Conference. Conference Record (Cat. No.00TH8540), 2000
H. Jafarkhani
semanticscholar   +1 more source

Space-Time block codes from orthogonal designs

IEEE Transactions on Information Theory, 1999
Member Ieee Vahid Tarokh, H. Jafarkhani, F. I. A. R. Calderbank   +2 more
semanticscholar   +1 more source

Asynchrony Resilient Space-Time Block Codes

2007 IEEE Information Theory Workshop, 2007
We present and evaluate methods for space-time coding over non-colocated transmit antennas. The proposed designs generate space-time block codes (STBCs) via systematic transformations of existing orthogonal STBCs. With a controlled reduction in rate in the form of a circular prefix, the resulting codes allow the maximum space diversity to be harvested ...
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Minimal non-orthogonality rate 1 space-time block code for 3+ Tx antennas

2000 IEEE Sixth International Symposium on Spread Spectrum Techniques and Applications. ISSTA 2000. Proceedings (Cat. No.00TH8536), 2000
O. Tirkkonen, A. Boariu, A. Hottinen
semanticscholar   +1 more source

Detection schemes for space-time block code and spatial multiplexing combined system

IEEE Communications Letters, 2005
Lan Zhao, V. Dubey
semanticscholar   +1 more source

Blind Identification of Spatial Multiplexing and Alamouti Space-Time Block Code via Kolmogorov-Smirnov (K-S) Test

IEEE Communications Letters, 2014
Mostafa Mohammadkarimi, O. Dobre
semanticscholar   +1 more source