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CRC-Based Multi-Error Correction of H.265 Encoded Videos in Wireless Communications

Archive ouverte : Communication dans un congrès

Boussard, Vivien | Coulombe, Stephane | Coudoux, François-Xavier | Corlay, Patrick | Trioux, Anthony

Edité par HAL CCSD ; IEEE

International audience. This paper analyzes the benefits of extending CRC-based error correction (CRC-EC) to handle more errors in the context of error-prone wireless networks. In the literature, CRC-EC has been used to correct up to 3 binary errors per packet. We first present a theoretical analysis of the CRC-EC candidate list while increasing the number of errors considered. We then analyze the candidate list reduction resulting from subsequent checksum validation and video decoding steps. Simulations conducted on two wireless networks show that the network considered has a huge impact on CRC-EC performance. Over a Bluetooth low energy (BLE) channel with Eb/No=8 dB, an average PSNR improvement of 4.4 dB on videos is achieved when CRC-EC corrects up to 5, rather than 3 errors per packet.

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