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کامپیوتر و شبکه::
مجاور راهآهن
Situation-aware Authenticated Video Broadcasting over Train-trackside WiFi Networks
Specifically, the scheme has four modules: (1) a train uses its on-board sensors to obtain its speed, location, and RSSI (Received Signal Strength Indicator) of train-trackside WiFi channel; (2) the train reports these real-time measurements to the railway control center with the legacy GSM-R networks; (3) according to the measurements, the control center or its WiFi AP adaptively customizes the protected codestream bitrate and AP-train handover time; (4) the train renders the received codestream which passes the authenticity verification process.
Section III elaborates the novel authenticated video streaming over train-trackside communication channels.
: SITUATION-AWARE TRUSTED VIDEO BROADCASTING OVER TRAIN-TRACKSIDE WIFI NETWORKS 3
Presently, some railway systems offer non-reliable live programmes over train-trackside WiFi networks, as shown in Fig.2.
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