Hybrid Data-Aided and Code-Aided Carrier Synchronization Schemes for Burst-Mode Communications

DOI

10.2991/icwcsn-16.2017.46How to use a DOI?

Keywords

synchronization; pilot; maximization periodogram; turbo code; expectation maximization

Abstract

For burst communication systems, high estimation accuracy and large estimation range cannot be achieved at the same time at low signal to noise ratio(SNR), a hybrid data-aided(DA) and code-aided(CA) carrier synchronization scheme is proposed. Firstly, the synchronization parameters coarse estimation is performed based on maximization of periodogram and cross-correlation algorithm utilizing known pilot symbols. Secondly, the fine estimation is obtained based on expectationm aximization (EM) algorithm exploiting the pilot symbols and soft information from the extended Turbo decoder. On the basis, the cascade of periodogram maximization and multiple crosscorrelations has been proposed, which improves the estimation performance with low complexity. Simulation results show that the proposed algorithm can satisfy the requirements of frequency estimation range and accuracy, BER performance of Turbo decoding is very close to perfect synchronization and the estimation range can reach half of the symbol rate at a relatively efficient pilot cost.

Copyright

© 2017, 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  - Jin-Hua Sun
AU  - Jing Cheng
PY  - 2016/12
DA  - 2016/12
TI  - Hybrid Data-Aided and Code-Aided Carrier Synchronization Schemes for Burst-Mode Communications
BT  - Proceedings of the 3rd International Conference on Wireless Communication and Sensor Networks (WCSN 2016)
PB  - Atlantis Press
SP  - 210
EP  - 215
SN  - 2352-538X
UR  - https://doi.org/10.2991/icwcsn-16.2017.46
DO  - 10.2991/icwcsn-16.2017.46
ID  - Sun2016/12
ER  -