A joint rotational periodogram averaging and demodulation soft information carrier synchronization algorithm

Author

Peng Liu ; Jinhua Sun ; Xiaojun Wu

Author_Institution

State Key Lab. of Integrated Service Networks, Xidian Univ., Xi´an, China

fYear

2013

fDate

22-25 Oct. 2013

Firstpage

1

Lastpage

4

Abstract

In short burst communication system, a joint rotational periodogram averaging (RPA) and demodulation soft information carrier estimation algorithm is proposed in this paper. Firstly, the coarse carrier estimation is carried out with periodogram averaging method after that the pilot sequence is rotated with different frequency offsets. Then, further fine carrier estimation is done by stepwise searching on the criterion of Maximum-Mean-square Soft Output (M²S²O). Simulation results show that the proposed algorithm with short pilots and lower complexity can achieve an excellent Bit Error Rate (BER) performance and eliminate large carrier offsets as much as half of the symbol rate. When BER is in the region of 10^-2~10^-5, Signal-to-Noise (SNR) degradation is within 0.3dB.

Keywords

channel estimation; demodulation; radiocommunication; synchronisation; bit error rate; coarse carrier estimation; demodulation soft information carrier synchronization algorithm; maximum mean square soft output criterion; periodogram averaging method; pilot sequence; rotational periodogram averaging; short burst communication system; stepwise searching; Algorithm design and analysis; Estimation; Frequency estimation; Joints; Partial transmit sequences; Signal processing algorithms; Synchronization; Maximum-Mean-square Soft Output(M²S²O); carrier estimation; periodogram averaging; signal processing; soft information;

fLanguage

English

Publisher

ieee

Conference_Titel

TENCON 2013 - 2013 IEEE Region 10 Conference (31194)

Conference_Location

Xi´an

ISSN

2159-3442

Print_ISBN

978-1-4799-2825-5

Type

conf

DOI

10.1109/TENCON.2013.6718465

Filename

6718465