Transmitter diversity antenna selection techniques for wireless channels utilizing differential space-time block codes

• Autorzy: Tran L. C. , Wysocki T. A. , Mertins A. , Seberry J.
• Języki publikacji: EN

Abstrakty

EN

The paper deals with transmitter diversity antenna selection techniques (ASTs) for wireless channels utilizing differential space-time block codes (DSTBCs). The proposed ASTs tend to maximize the signal-to-noise ratio (SNR) of those channels. Particularly, we propose here the so-called general (M,N;K) AST/DSTBC scheme for such channels. Then, based on this AST, we propose two modified ASTs which are more amenable to practical implementation, namely the restricted (M,N;K) AST/DSTBC scheme and the (N + —N,N;K) AST/DSTBC scheme. The restricted (M,N;K) AST/DSTBC scheme provides relatively good bit error performance using only one feedback bit for transmission diversity purpose, while the (N+ —N,N;K) AST/DSTBC scheme shortens the time required to process feedback information. These techniques remarkably improve bit error rate (BER) performance of wireless channels using DSTBCs with a limited number (typically 1 or 2) of training symbols per each coherent duration of the channel. Simulations show that the proposed AST/DSTBC schemes outperform the DSTBCs without antenna selection even with only 1 training symbol.

Słowa kluczowe

EN

differential space-time modulation; differential space-time block codes; diversity antenna selection; MIMO system

• Wydawca: Instytut Łączności - Państwowy Instytut Badawczy
• Czasopismo: Journal of Telecommunications and Information Technology
• Rocznik: 2006
• Tom: nr 2
• Strony: 79--96
• Opis fizyczny: Bibliogr. 32 poz., rys.

Twórcy

autor

Tran L. C.

autor

Wysocki T. A.

autor

Mertins A.

autor

Seberry J.

• University of Wollongong, Northfields Avenue, Wollongong, NSW 2522, Australia,

Bibliografia

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