On SNR Mismatch in T-TCM Systems

Yan Tao; Ru Le; Zhang Xi; Du Xing-min

doi:10.3724/SP.J.1146.2007.01044

Volume 31 Issue 1

Dec. 2010

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Article Navigation > Journal of Electronics & Information Technology > 2009 > 31(1): 61-65

Yan Tao, Ru Le, Zhang Xi, Du Xing-min. On SNR Mismatch in T-TCM Systems[J]. Journal of Electronics & Information Technology, 2009, 31(1): 61-65. doi: 10.3724/SP.J.1146.2007.01044

Citation:

Yan Tao, Ru Le, Zhang Xi, Du Xing-min. On SNR Mismatch in T-TCM Systems[J]. Journal of Electronics & Information Technology, 2009, 31(1): 61-65. doi: 10.3724/SP.J.1146.2007.01044

Yan Tao, Ru Le, Zhang Xi, Du Xing-min. On SNR Mismatch in T-TCM Systems[J]. Journal of Electronics & Information Technology, 2009, 31(1): 61-65. doi: 10.3724/SP.J.1146.2007.01044

Citation:

Yan Tao, Ru Le, Zhang Xi, Du Xing-min. On SNR Mismatch in T-TCM Systems[J]. Journal of Electronics & Information Technology, 2009, 31(1): 61-65. doi: 10.3724/SP.J.1146.2007.01044

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On SNR Mismatch in T-TCM Systems

doi: 10.3724/SP.J.1146.2007.01044

Received Date: 2007-06-25
Rev Recd Date: 2007-11-05
Publish Date: 2009-01-19

Abstract

Abstract

In this paper, impact of SNR mismatch on the T-TCM performance is investigated in AWGN. The Monte Carlo simulation results indicate that when the under-estimate SNR offset is no more than 4dB, the T-TCM performance will not be badly affected, but greater offset can lead rapid performance degradation; Otherwise the overestimate of SNR will never lower the performance. A theoretical explanation is given by analyzing the Jacobian logarithm formula and iterative decoding algorithm, and based on the explanation a new T-TCM decoding scheme without SNR estimation is further proposed, with which the T-TCM systems have no performance loss and can be more conveniently applied and easily implemented.

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References(1)

References

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