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2010

Efficiently decoded full-rate space-time block codes

9 years 4 months ago
Efficiently decoded full-rate space-time block codes
Space-time block codes with orthogonal structures typically provide full-diversity reception and simple receiver processing. However, rate-1 orthogonal codes for complex constellations have not been found for more than two transmit antennas. By using a genetic algorithm, rate-1 space-time block codes that accommodate very simple receiver processing at the cost of reduced diversity are designed in this paper for more than two transmit antennas. Simulation results show that evolved codes combined with efficient outer codes provide better performance over fading channels than minimum-decoding-complexity quasiorthogonal codes at typical operating signal-to-noise ratios. When the fading is more severe than Rayleigh fading, the spectral efficiency is specified, and an efficient outer code is used, evolved codes outperform orthogonal space-time block codes.
Don J. Torrieri, Matthew C. Valenti
Added 21 May 2011
Updated 21 May 2011
Type Journal
Year 2010
Where TCOM
Authors Don J. Torrieri, Matthew C. Valenti
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