Antenna Selection with Differential Modulation Based on Quasi-Orthogonal Space-Time Block Code

2006 ◽  
Author(s):  
Souyin Liu ◽  
Wenwu Xie ◽  
Jinjing Zhan ◽  
Fan Li
Keyword(s):  
Antenna Selection ◽  
Block Code ◽  
Space Time ◽  
Differential Modulation ◽  
Time Block ◽  
Space Time Block Code ◽  
Orthogonal Space

MIMO-Orthogonal space time block code system joint with BCH-TC in Rayleigh fading channel for performance of transmit antenna selection

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Nitin Tejram Deotale
Keyword(s):  
Mimo Systems ◽  
Antenna Selection ◽  
Turbo Code ◽  
Block Code ◽  
Space Time ◽  
Time Block ◽  
Transmit Antenna Selection ◽  
Content Type ◽  
Space Time Block Code ◽  
Orthogonal Space

Purpose To enhance the performance transmit antenna selection (TAS) of spatial modulation (SM), systems technique needs to be essential. This TAS is an effective technique for reducing the multiple input multiple output (MIMO) systems computational difficulty, and bit error rate (BER) can increase remarkably by various TAS algorithms. But these selection methods cannot provide code gain, so it is essential to join the TAS with external code to obtain cy -ode gain advantages in BER. Design/methodology/approach In this paper, Bose–Chaudhuri–Hocquenghem (BCH)-Turbo code TC is combined with the orthogonal space time block code system. Findings In some existing work, the improved BER has been perceived by joining forward error correction code and space time block code (STBC) for MIMO systems provided greater code gain. The proposed work can provide increasing code gain and the effective advantages of the TAS-OSTBC system. Originality/value To perform the system analysis, Rayleigh channel is used. In the case with multiple TAS-OSTBC systems, better performance can provide by this new joint of the BCH-Turbo compared to the conventional Turbo code for the Rayleigh fading.

scholarly journals A Minimum Mean-Square-Error (MMSE) Decoder for Quasi-Orthogonal Space–Time Block Code

Electronics ◽  
2019 ◽  
Vol 8 (7) ◽  
pp. 732
Author(s):  
Jae Jin Jeong
Keyword(s):  
Mean Square Error ◽  
Transmission Rate ◽  
Minimum Mean Square Error ◽  
Estimation Method ◽  
Block Code ◽  
Space Time ◽  
Mean Square ◽  
Time Block ◽  
Space Time Block Code ◽  
Orthogonal Space

The quasi-orthogonal space–time block code (QO-STBC) was introduced to achieve a full transmission rate for the four antennas system. In this paper, a decoding method for the QO-STBC is proposed to improve the bit-error-rate (BER) and to solve a rank-deficient problem. The proposed algorithm is based on the minimum mean-square-error (MMSE) technique. To overcome the implementation problem from the MMSE, an estimation method of the noise variance is developed in this paper. The proposed algorithm is implemented without matrix inversion, therefore, the proposed algorithm achieves a better BER than the conventional algorithms, as it has a low computational complexity. The simulation results show the low BER of the proposed algorithm in a Rayleigh fading channel.

Quasi-Orthogonal Space-Time Block Code

10.1142/p524 ◽  
2007 ◽  
Author(s):  
Chau Yuen ◽  
Yong Liang Guan ◽  
Tjeng Thiang Tjhung
Keyword(s):  
Block Code ◽  
Space Time ◽  
Time Block ◽  
Space Time Block Code ◽  
Orthogonal Space
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