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A new flexible symbol-timing synchronization method for software defined radio

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4 Author(s)
Harada, H. ; Commun. Res. Lab., Independent Adm. Instn., Yokosuka, Japan ; Fujise, M. ; Nakamura, H. ; Ikegama, T.

A flexible symbol-timing synchronization method is a one that uses a common sampling clock to find synchronization points for radio communication systems that have different symbol rates. This method estimates synchronization points from state patterns calculated using the symbol rate, sampling clock, and number of observed symbols. Decreasing the number of state pattern is one of best ways to reduce the amount of device resources needed to store the patterns. In this paper, we propose a new pattern generation method in which the number of generated patterns does not increase when the sampling clocks of the communications systems are different. To show the feasibility of this method for symbol-timing synchronization, we analyzed a relationship between the number of samples and the number of state patterns and calculated the BER (bit error rate) in AWGN (additive white Gaussian noise) and one-path flat Rayleigh fading environments by computer simulation.

Published in:

Personal, Indoor and Mobile Radio Communications, 2003. PIMRC 2003. 14th IEEE Proceedings on  (Volume:1 )

Date of Conference:

7-10 Sept. 2003