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A distributed algorithm for inter-layer network coding-based multimedia multicast in Internet of Things
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DOI：10.1016/j.compeleceng.2015.11.026.png)
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Abstract
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With the development of the Internet of Things (IoT), more and more devices that have diverse computing and communication capabilities are interconnected. For,multimedia multicast in the IoT, a fixed flow rate cannot meet the quality-of-service requirements of heterogeneous devices and each device may not get the information from all other devices. In order to satisfy the heterogeneous requirements, we develop a distributed algorithm to solve the inter-layer flow optimization problem based on network coding for multimedia multicast in the IoT, by using primal decomposition and primal-dual analysis. We also apply Lyapunov theory to prove the convergence and global stability of the proposed iterative algorithm. Numerical results demonstrate that the proposed algorithm has better flexibility, stability, and implementation advantages than the previous intra-layer ones. (C) 2015 Elsevier Ltd. All rights reserved.
Keywords:
Internet of Things
Multimedia multicast
Inter-layer network coding
Flow optimization
Distributed algorithm
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