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A new reduced-complexity LMMSE receiver of adaptive transmission system based on FTN signaling in satellite communications | IEEE Conference Publication | IEEE Xplore

A new reduced-complexity LMMSE receiver of adaptive transmission system based on FTN signaling in satellite communications


Abstract:

Adaptive Transmission Systems, such as the adaptive coding and modulation (ACM) system, improve the spectral efficiency in satellite channels. At the same time, the FTN s...Show More

Abstract:

Adaptive Transmission Systems, such as the adaptive coding and modulation (ACM) system, improve the spectral efficiency in satellite channels. At the same time, the FTN signaling, as an unique modulation of high spectral efficiency, can transmit more data without increasing bandwidth. The scheme that adopts the FTN signaling in the adaptive transmission system for satellite communications can improve the spectral efficiency further by adjusting the code rates and packing ratios. However, the variable symbol rate and colored noise induced by the FTN signaling bring extra complexity to the receiver of adaptive transmission system. In this paper, we propose a new LMMSE receiver which can detect FTN signal at constant sampling rate. The receiver adopts an orthogonal match-filter to reduce the demodulation complexity brought by colored noise. Through simulations, the new receiver's bit error rate (BER) performance reaches the ISI-free system with low complexity, and the receiver can be flexibly used in the adaptive transmission system based on FTN signaling.
Date of Conference: 14-16 December 2016
Date Added to IEEE Xplore: 26 January 2017
ISBN Information:
Conference Location: Shenzhen, China

References

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