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Non-Vanishing Space Time Block Code for Three Time Slots and Two Transmit Antennas

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DOI: 10.4236/jcc.2015.36008    5,158 Downloads   5,620 Views  
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ABSTRACT

Recently, space time block codes (STBCs) are proposed for multi-input and multi-output (MIMO) antenna systems. Designing an STBC with both low decoding complexity and non-vanishing property for the Long Term Evolution Advanced (LTE-A) remains an open issue. In this paper, first our previously proposed STBC’s non-vanishing property will be completely described. The proposed STBC scheme has some interesting properties: 1) the scheme can achieve full rate and full diversity; 2) its maximum likelihood (ML) decoding requires a joint detection of three real symbols; 3) the minimum determinant values (MDVs) do not vanish by increasing signal constellation sizes; 4) compatible with the single antenna transmission mode. The sentence has been dropped. Second, in order to improve BER performance, we propose a variant of proposed STBC. This scheme further decreases the detection complexity with a rate reduction of 33%; moreover, non-vanishing MDVs property is preserved. The simulation results show the second proposed STBC has better BER performance compared with other schemes.

Conflicts of Interest

The authors declare no conflicts of interest.

Cite this paper

Azarbar, A. (2015) Non-Vanishing Space Time Block Code for Three Time Slots and Two Transmit Antennas. Journal of Computer and Communications, 3, 74-86. doi: 10.4236/jcc.2015.36008.

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