TITLE:
Non-Vanishing Space Time Block Code for Three Time Slots and Two Transmit Antennas
AUTHORS:
Ali Azarbar
KEYWORDS:
Space Time Block Codes, Maximum Likelihood Decoding, Non-Vanishing Minimum Determinant Value
JOURNAL NAME:
Journal of Computer and Communications,
Vol.3 No.6,
June
3,
2015
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.