Research of Sphere Decoding Detection Algorithm Based on Transmit Diversity

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Abstract:

In MIMO-OFDM system, the traditional MRC algorithm is used for signal detection in transmit diversity mode ,this algorithm which assumes the same impulse response between adjacent sub-carriers and doesnt consider the noise ,has a higher bit error rate when signal-to-noise ratio is small ,based on this, this paper introduces a fast and effective single tree research sphere decoding detection algorithm and gives a detailed description of the algorithm ,simulation results show that the algorithm can reduce the bit error rate and improve performance.

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Periodical:

Advanced Materials Research (Volumes 791-793)

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1328-1332

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September 2013

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© 2013 Trans Tech Publications Ltd. All Rights Reserved

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