Simple Doppler Spread Compensator for Future Railway Mobile Communication Systems (FRMCS)

Nachwan Mufti Adriansyah, Khoirul Anwar, Ikhfan Ammar Rangkuti, Dano Seto Anbela, Nisa Noor Amalia, Lia Suci Waliani


The high speed railway technology is one of the important part of future railway system, where the system is suffering from the Doppler effect. In this paper, the Doppler Spread Compensator (DSC) technology is proposed for future railway mobile communication systems (FRMCS), where interpolator based on Minimum Mean Square Error (MMSE) and array antenna are used to assist the DSC. This DSC technique plays an important role in the high speed railway technology to compensate the Doppler effect. We evaluate performance of the system in terms of bit-error-rate (BER) using a series of computer simulations. We also evaluate the performance of DSC assisted by array antenna elements. We confirmed that the proposed simple DSC works well even though the railway is with high speed of 500 km/h. The results confirmed that the array antenna helps to improve the performances of FRMCS. The results are expected to contribute to the development of communications of FRMCS for high speed train.


High speed railway; doppler effect; doppler spread compensator; Future Railway Mobile Communication Systems (FRMCS).

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