scholarly journals Full Rate General Complex Orthogonal Space-Time Block Code for 8-Transmit Antenna

2012 ◽  
Vol 29 ◽  
pp. 2475-2479
Author(s):  
N.S. Murthy ◽  
S.Sri Gowri
Keyword(s):  
Block Code ◽  
Space Time ◽  
Time Block ◽  
Space Time Block Code ◽  
Orthogonal Space ◽  
Full Rate ◽  
General Complex

scholarly journals A Cyclotomic Lattice Based Closed Loop QOSTBC for Four Transmit Antennas

2019 ◽  
Vol 8 (5S3) ◽  
pp. 167-171
Keyword(s):  
Closed Loop ◽  
Block Code ◽  
Space Time ◽  
Lattice Points ◽  
Time Block ◽  
Error Performance ◽  
Space Time Block Code ◽  
Full Diversity ◽  
Orthogonal Space ◽  
Full Rate

Drawback of the Space Time Block Code (STBC) is, for complex constellations, full rate and full diversity design exist only for two transmit antennas. In this paper, we propose a novel closed loop Quasi Orthogonal Space Time Block Code (QOSTBC) system based on cyclotomic lattices for four transmit antennas. It is a full rate and full diversity design where the information bits are mapped into four dimensional (4-D) lattice points. The bit error and symbol error performance of the system are evaluated by simulation.

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