LTE-based Wireless Channel Modeling on High-Speed Railway at 465MHz

A practical and novel research of radio propagation channel modeling is mainly presented in this paper. This is the first comprehensive result of path loss, large-scale fading and small-scale fading under long-term evolution frequency division duplex railway testing network (LTE-R) whose downlink center frequency is set at 465MHz, bandwidth is 5MHz. Besides, a detailed description of the measurement system as well as the measurement scenario is introduced. Our measurement campaigns were carried out under multiple-input multiple-output with top train speed of 340kmffi. Based on the measurement data, the empirical path loss model is studied. Probability density functions of large-scale fading and small-scale fading are discussed. Channel characteristics such as path loss attenuation exponent, standard deviation of shadowing and Rician ${K}$-factor are shown. The statistical channel models are established to characterize the high-speed railway (HSR) scenarios which can contribute to evaluating and significantly promoting the network performance.

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