A new train-to-ground Video transmission mechanism based on redundancy
A new train-to-ground Video transmission mechanism based on redundancy
- Author(s): Wang Lei and Yongxiang Zhao
- DOI: 10.1049/cp.2015.0951
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- Author(s): Wang Lei and Yongxiang Zhao Source: 6th International Conference on Wireless, Mobile and Multi-Media (ICWMMN 2015), 2015 page ()
- Conference: 6th International Conference on Wireless, Mobile and Multi-Media (ICWMMN 2015)
- DOI: 10.1049/cp.2015.0951
- ISBN: 978-1-78561-046-2
- Location: Beijing, China
- Conference date: 20-23 Nov. 2015
- Format: PDF
Railway communication technologies and architectures are powerhouse for railway techniques' advancement. Video communication is an important communication service between train and ground. In this paper, we propose a method based on redundancy to transfer video in train-to-ground communication. Its basic idea is to deploy multiple transmitters on the train and use redundancy transmission provided by these transmitters to reduce the probability of packet lost and delivery time due to fast movement of train. We build a model to analysis the user's QoE with this method. Based on this model, we can find the optimal encoding rate given the physical drop probability and channel rate.
Inspec keywords: wireless channels; radio transmitters; probability; quality of experience; channel coding; video communication; redundancy; railway communication
Subjects: Mobile radio systems; Other topics in statistics; Codes; Multimedia communications; Reliability
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