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Performance Evaluation of Multicast Video Distribution with User Cooperation in LTE-A Vehicular Environments.

To improve reliability in vehicular communications Application Layer Forward Error Correction (AL-FEC) based on Raptor codes is explored for multimedia broadcast. This paper considers a novel cross-layer simulator based on the latest RaptorQ codes for transmitting high data rate video and investigates packet recovery for cooperative mobile devices and vehicle receiver. Multiple Input Multiple Output (MIMO) channels in a realistic outdoor environment for a user moving at 50kmph in an LTE-A system are considered. Results show that transmission efficiency and reliability can be significantly improved when Systematic RaptorQ Codes with user cooperation is employed. Enhanced throughput and improved outage along the route were also achieved.