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Efficiency Improvement of Space Time Block Codes
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International Journal of Communications, Network and System Sciences·Volume 03 (2010)·Pages 507–510·Published 29 June 2010·DOI10.4236/ijcns.2010.36068
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Abstract
Unlike most of the existing methods in Space Time coding (STC) system which focus on design of STC gaining full rate and/or maximum diversity, we propose an approach to improve spectral efficiency of the code. The proposed scheme carries more information symbols in each transmission block as compare to its counterpart code, and yet retains the property of simple decoding. Simulation results show that transmit diversity is retained with improvement of code efficiency. We mainly focus on Four transmit antenna scheme but it can be generalized for any number of transmit antennas.
KeywordsSpace Time Block CodeSpectral Efficiency
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