Reliable packet type estimation via joint protocol-channel decoding

Wan Kai (1) , Liu Jinghui (1) , Michel Kieffer (1, 2, 3) , Pierre Duhamel (1)

1 L2S - Laboratoire des signaux et systèmes
2 LTCI - Laboratoire Traitement et Communication de l'Information
3 IUF - Institut universitaire de France

This paper presents a joint protocol-channel decoding techniques to improve the estimation quality of the type of a packet corrupted by transmission errors. It exploits the redundancy present in the protocol stack to determine the packet type which is the most probable a posteriori. An optimal and a suboptimal estimation algorithm are presented. The latter is illustrated on the type estimation of packets compressed with the Robust Header Compression algorithm in unidirectional mode. Compared to a classical packet type estimation technique, improvements of more than 3.9 dB are observed in terms of channel SNR at header error rates of 10-2.1

Domaines: Traitement du signal et de l'image [eess.SP]; Traitement du signal et de l'image [eess.SP]; Réseaux et télécommunications [cs.NI]

Wan Kai, Liu Jinghui, Michel Kieffer, Pierre Duhamel. Reliable packet type estimation via joint protocol-channel decoding. IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP 2014), May 2014, Florence, Italy. pp.1921 - 1925, ⟨10.1109/icassp.2014.6853933⟩. ⟨hal-01010873⟩