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Variable-rate convolutional network coding |
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| Authors: | MA Song-ya CHEN Xiu-bo LUO Ming-xing YANG Yi-xian |
| Affiliation: | [1]Information Security Center, State Key Laboratory of Networking and Switching Technology,Beijing University of Posts and Telecommunications, Beijing 100876, China [2]Key Laboratory of Network and Information Attack and Defense Technology, Ministry of Education, Beijing University of Posts and Telecommunications, Beijing 100876, China [3]National Engineering Laboratory for Disaster Backup and Recovery, Beijing University of Posts and Telecommunications, Beijing 100876, China [4]School of Mathematics and Information Sciences, Henan University, Kaifeng 475004, China |
| Abstract: | Four types of variable-rate convolutional network codes are investigated over a single-source finite cyclic network.It is found that variable-rate generic,dispersion and broadcast can be implemented on the same network without changing the local encoding kernels of the non-source nodes.The efficient implementation has the advantage that each non-source node only needs to store one copy of the local encoding kernel within a session.However,it is also shown by an example that variable-rate multicast may not always be implemented under the above condition. |
| Keywords: | variable-rate convolutional generic convolutional dispersion convolutional broadeast convolutional multicast |
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