Bandwidth efficient compress-and-forward relaying based on joint source-channel coding
| Autor: | Ragnar Thobaben, Ricardo Blasco-Serrano, Mikael Skoglund |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2011 |
| Předmět: |
Computer science
Decoding Real-time computing 02 engineering and technology Data_CODINGANDINFORMATIONTHEORY law.invention 0203 mechanical engineering Relay law Computer Science::Networking and Internet Architecture 0202 electrical engineering electronic engineering information engineering Electronic engineering Entropy (information theory) Computer Science::Information Theory Modulation Channel code ComputerSystemsOrganization_COMPUTER-COMMUNICATIONNETWORKS 020302 automobile design & engineering 020206 networking & telecommunications Spectral efficiency Iterative decoding Relays Telekommunikation Strontium Encoding Telecommunications Joints Relay channel Decoding methods Communication channel |
| Zdroj: | WCNC |
| ISSN: | 2011-1207 |
| Popis: | We propose a new code design for compress-and-forward relaying over bandlimited relay-to-destination channels. The main contribution of this paper is a code design based on joint (source-channel) coding and modulation that uses the correlation between the observations at the relay and the destination as protection against channel errors. This allows for relay nodes with reduced complexity, shifting most of the processing requirements to the destination node. Moreover, by using scalar quantizers with an entropy constraint our system provides remarkable performance in channel conditions where neither amplify-and-forward nor compress-and-forward efficiently exploit the presence of a relay node. Simulation results confirm the benefits of our proposed system. © 2011 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. Qc 20111207 |
| Databáze: | OpenAIRE |
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