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- W2896837663 abstract "Small-cell network is a promising solution to the high video traffic. However, it has some fundamental problems, i.e., high backhaul cost, quality of experience (QoE), and interference. To address these issues, we propose a cooperative transmission strategy for video transmission in small-cell networks with caching. In the scheme, each video file is encoded into segments using a maximum distance separable rateless code. Then, a portion of each segment is cached at a certain small-cell base station (SBS), so that the SBSs can cooperatively transmit these segments to users without incurring high backhaul cost. QoE When there is only one active user in the network, a greedy algorithm is utilized to deliver the video-file segment from the SBS with good channel state to the user watching videos in real time. This reduces video freezes and improves the QoE. When there exist several active users, interference will appear among them. To deal with interference, interference alignment (IA) is adopted. Based on the scheme for a single user, the greedy algorithm and IA are combined to transmit video-file segments to these users, and the performance of the system can be significantly improved. Simulation results are presented to show the effectiveness of the proposed scheme." @default.
- W2896837663 created "2018-10-26" @default.
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- W2896837663 date "2018-12-01" @default.
- W2896837663 modified "2023-10-01" @default.
- W2896837663 title "Cooperative Video Transmission Strategies via Caching in Small-Cell Networks" @default.
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- W2896837663 doi "https://doi.org/10.1109/tvt.2018.2874258" @default.
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