Spectrum Combining Technique at Low SNR for the Frequency Selective Channels

DOI

10.2991/cisia-15.2015.34How to use a DOI?

Keywords

frequency selective channel; spectrum combining; multiple sensors; spatial diversity, Average Phase

Abstract

To decrease the Inter-Symbol Interference (ISI) for the frequency selective channel at low SNR, a spectrum combining technique based on average phase from the multiple sensors without synchronization is proposed. The combining signal’s phase will converge to the average phase instead of the value of the fixed branch to meliorate adverse effect on the demodulation performance caused by the single nonlinear phase characteristic. Finally the simulations show that the spectrum combining technique can achieve a substantial performance improvement without the symbol timing synchronization. Therefore it could be regarded as a useful combining technique in the frequency selective channels at low SNR, especially when synchronization is difficult to achieve.

Copyright

© 2015, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - C.Y Shen
AU  - Y.P Hu
AU  - X. Zhang
AU  - Y.Q Tang
PY  - 2015/06
DA  - 2015/06
TI  - Spectrum Combining Technique at Low SNR for the Frequency Selective Channels
BT  - Proceedings of the International Conference on Computer Information Systems and Industrial Applications
PB  - Atlantis Press
SP  - 129
EP  - 132
SN  - 2352-538X
UR  - https://doi.org/10.2991/cisia-15.2015.34
DO  - 10.2991/cisia-15.2015.34
ID  - Shen2015/06
ER  -