Abstract
An unequal error protection approach for the reliable communication of visual information over additive white Gaussian noise channels is proposed and studied. This method relies on a bandwidth-efficient coded modulation scheme that employs selective channel coding and transmission energy allocation in conjunction with sequence maximum a posteriori soft-decision detection. Experimental results indicate that this scheme exhibits graceful performance degradation as the channel conditions deteriorate and provides substantial objective and subjective improvements over uncoded and equal-error protection systems. Coding gains of up to 4 dB in Eb/No are achieved. Index Terms- Image/video communication, MAP detection, transmission energy allocation, trellis-coded modulation, unequal error protection.
Original language | English (US) |
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Pages (from-to) | 1722-1728 |
Number of pages | 7 |
Journal | IEEE Transactions on Communications |
Volume | 47 |
Issue number | 11 |
DOIs | |
State | Published - 1999 |
Externally published | Yes |
ASJC Scopus subject areas
- Electrical and Electronic Engineering