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Due to the convenience and flexibility brought by railway traffic, more and more people prefer to using it for travel. One of the vision of 5G network is to support high-mobility users with high-data-rate connection, which brings challenges to the system design of the HSR communication system. Millimeter-wave (mmWave) technologies are considered as candidates to provide wide-band communication, however...
In this paper, a novel interference cancellation (IC) algorithm is introduced which is applicable to improving the signal to interference power ratio (SIR) for the signals of a specific user by estimating the channels accurately. In this algorithm, a so-called generalized array manifold (GAM) generic channel model is adopted for parameter estimation which makes use of the Firstorder Taylor-series...
In this paper, a channel modeling method based on random-propagation-graph is elaborated, validated, and applied to characterizing time-variant channels observed in typical environments for high-speed railway wireless communications. The advantage of the proposed method is that the frequency-tempo-spatial channel coefficients, as well as the multi-dimensional channel impulse responses in delay, Doppler...
In order to extract the statistical characteristics of propagation channels, multiple impulse responses of the channels are measured and saved e.g. in terms of cycles or bursts. In the case where measurements are performed in time-variant environments, the received signals need to be divided into multiple segments. It is essential to perform the data segmentation reasonably in order to guarantee that...
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