Abstract
With the rapid deployment of high speed railway (HSR) worldwide, both safety operation and comfort experience can be desired to evolve into a future era of intelligent transportation system. To eliminate boredom and provide entertainment for passengers, an intranet for internal communications among passengers named as onboard social network system (SNS) is needed. In this paper, the latest progress in HSR network architectures and technology building blocks are discussed to enable the implementation of the SNS. Meanwhile, based on the device-to-device (D2D) communication technology for proximal information interaction, SNS can be efficiently facilitated. A dynamic resource allocation algorithm is proposed to maximize the total utility of the onboard SNS, which is solved with the matching theory method. Simulation results verify the convergence and efficiency of the proposed algorithm.
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