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We introduce a dual condition handover scheme to determine the handover point of dual antenna high-speed trains, and propose a handover postponement scheme for the back antenna to reduce the impact of handover delay.

We improve the C-RAN architecture for supporting high-speed railway communication. Results show that the improved architecture significantly reduces the bandwidth consumption brought by base station coordination and achieves higher system capacity.

We establish an analytical model to analyze the impact of “information distortion” caused by concurrent rerouting after a network failure. The estimate values derived from the analytical model agree well with the experimental results.

In this article, we propose a model to analyze the influence of information asynchronization on networking performance. In the proposed analytical model, we introduce the "distributed network noise" (DNN) parameter to describe information asynchronization of wavelength availability, which is caused by packet loss during the flooding procedure. We also derive the relationship between packet loss rate and DNN, as well as the relationship between DNN and blocking probability. It is shown that the experimental results agree well with the estimate values derived from our proposed analytical model.