Wireless image transmission using turbo codes and optimal unequal error protection

Unequal Error Protection applied to JPEG Image Transmission using Turbo Codes

Unequal Error Protection Turbo Codes Diploma Thesis

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Research on Unequal Error Protection with Punctured Turbo Codes in Jpeg Image Transmission System

An investigation of Unequal Error Protection (UEP) methods applied to JPEG image transmission using turbo codes is presented. The JPEG image is partitioned into two groups, i.e., DC components and AC components according to their respective sensitivity to channel noise. The highly sensitive DC components are better protected with a lower coding rate, while the less sensitive AC components use a...

Turbo Unequal Error Protection Codes with Multiple Protection Levels

Most existing Turbo unequal error protection (UEP) codes provide two error protection levels at the cost of extending the block size of the codeword or increasing the computational complexity. This paper proposes two novel Turbo UEP coding schemes, which provide multiple error protection levels for information bits, according to their different sensitivities to the channel noise. By permuting t...

Unequal Error Protection in Image Transmission Based on LDPC Codes

This paper investigates the performance of image transmission with unequal error protection (UEP) schemes based on irregular Low-Density Parity-Check (LDPC) codes. Firstly, the UEP is achieved by mapping different bits of the image bytes to different positions of LDPC codes, i.e. the more important bits in the image are mapped to the variable node with higher degrees in irregular LDPC codes, af...