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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Sung Hoon Lim Kwang Taik Kim Young-Han Kim |
| Copyright Year | 2014 |
| Description | Author affiliation: Digital Media & Commun. Res. Center, Samsung Electron., Suwon, South Korea (Sung Hoon Lim; Kwang Taik Kim) || Dept. of Electr. & Comput. Eng., Univ. of California, San Diego, La Jolla, CA, USA (Young-Han Kim) |
| Abstract | A new coding scheme for multicasting a message over a general relay network is presented that extends both network coding for graphical networks by Ahlswede, Cai, Li, and Yeung, and partial decode-forward for relay channels by Cover and El Gamal. For the N-node Gaussian multicast network, the scheme achieves within 0.5N bits from the capacity, improving upon the best known capacity gap results. The key idea is to use multicoding at the source as in Marton coding for broadcast channels. Instead of recovering a specific part of the message as in the original partial decode-forward scheme, a relay in the proposed distributed decode-forward scheme recovers an auxiliary index that implicitly carries some information about the message and forwards it in block Markov coding. This scheme can be adapted to broadcasting multiple messages over a general relay network, extending and refining a recent result by Kannan, Raja, and Viswanath. |
| Starting Page | 636 |
| Ending Page | 640 |
| File Size | 264619 |
| Page Count | 5 |
| File Format | |
| ISBN | 9781479951864 |
| ISSN | 21578117 |
| DOI | 10.1109/ISIT.2014.6874910 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2014-06-29 |
| Publisher Place | USA |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Encoding Indexes Decoding Network coding Relay networks (telecommunications) |
| Content Type | Text |
| Resource Type | Article |
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