Data aided symbol timing estimation in space-time coding systems with continuous phase modulation

作者：Shen Wenli; Zhao Minjian^*; Qiu Peiliang

来源：European Transactions on Telecommunications, 2009, 20(2): 227-232.

DOI：10.1002/ett.1350

Space-time coding has been proposed recently in the MIMO wireless communication systems for improving the capacity and data rate without bandwidth expansion. Symbol timing synchronisation is all important issue in such systems. In this paper, a novel data aided symbol timing estimation algorithm was proposed for burst-mode transmission systems of space-time trellis coding combined with continuous phase modulation (CPM) for Rayleigh fading channels. A training sequence is embedded before transmission of each packet. The receiver calculates the Digital Fourier Transformation (DFT) of the phase of the differential signals. The symbol timing offset can be estimated from the phase of the tone component of the DFT Outputs. MATLAB simulation results show that the variance of the timing estimation error is very small. This algorithm can estimate the initial timing offset rapidly and accurately.

• 出版日期2009-3
• 单位浙江大学