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Efficiency Improvement of Space Time Block Codes

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Author(s): Zahoor Ahmed Baloch | Mohammad Usman Baloch | Noor Hussain

Journal: International Journal of Communications, Network and System Sciences
ISSN 1913-3715

Volume: 03;
Issue: 06;
Start page: 507;
Date: 2010;
Original page

Keywords: Space Time Block Code | Spectral Efficiency

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.

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