Two-way source coding with a helper
| dc.creator | Permuter, Haim | |
| dc.creator | Steinberg, Yossi | |
| dc.creator | Weissman, Tsachy | |
| dc.date | 2008-11-28 | |
| dc.date | 2009-04-05 | |
| dc.date.accessioned | 2026-07-07T13:00:06Z | |
| dc.date.available | 2026-07-07T13:00:06Z | |
| dc.description | Consider the two-way rate-distortion problem in which a helper sends a common limited-rate message to both users based on side information at its disposal. We characterize the region of achievable rates and distortions where a Markov form (Helper)-(User 1)-(User 2) holds. The main insight of the result is that in order to achieve the optimal rate, the helper may use a binning scheme, as in Wyner-Ziv, where the side information at the decoder is the "further" user, namely, User 2. We derive these regions explicitly for the Gaussian sources with square error distortion, analyze a trade-off between the rate from the helper and the rate from the source, and examine a special case where the helper has the freedom to send different messages, at different rates, to the encoder and the decoder. | |
| dc.identifier | https://arxiv.org/abs/0811.4773 | |
| dc.identifier | http://arxiv.org/abs/0811.4773 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/225760 | |
| dc.subject | Information Theory | |
| dc.title | Two-way source coding with a helper | |
| dc.type | text |