On optimal power allocation of layered coding in noisy wireless relay networks

This paper investigates the issue of power allocation when coupling scalable video coding (SVC) with superposition coding (SPC) in a fundamental three-node relay network. End-to-end distortion (EED) formulations for the SVC-SPC architecture are derived for optimization subject to power allocation pa...

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Bibliographic Details
Published inThe 15th International Symposium on Wireless Personal Multimedia Communications pp. 321 - 325
Main Authors Ho, J., Pin-Han Ho
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.09.2012
Subjects
Decoding
Encoding
Optimization
Relays
Resource management
Signal to noise ratio
Wireless communication
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Summary:This paper investigates the issue of power allocation when coupling scalable video coding (SVC) with superposition coding (SPC) in a fundamental three-node relay network. End-to-end distortion (EED) formulations for the SVC-SPC architecture are derived for optimization subject to power allocation parameters at the source and relay nodes. Behavior of the EED optimizers and their sensitivity to non-optimal power allocation configurations are further analyzed under a number of network channel scenarios. It is found that accurate configuration of power allocation tailored for specific channel conditions is crucial for optimal EED performance at the end-user.
ISBN:9781467345330
1467345334
ISSN:1347-6890