Title :
Application of DFT codes for robustness to erasures
Author :
Rath, Gagan ; Henocq, Xavier ; Guillemot, Christine
Author_Institution :
INRIA, IRISA, Rennes, France
Abstract :
Discrete Fourier transform (DFT) codes are used to provide robustness against packet losses in IP networks. First, the relationship between DFT codes and over-complete expansions using frames is established. It is shown that the message recovery by syndrome decoding of erasures and direct signal space projection from received samples are equivalent. The error performance analysis of DFT codes is used to develop packetization criteria in order to guarantee minimum reconstruction error
Keywords :
codes; decoding; error correction codes; packet switching; telecommunication networks; transport protocols; DFT codes; IP networks; code vectors quantization; direct signal space projection; discrete Fourier transform; erasure robustness; error performance analysis; frames; message recovery; minimum reconstruction error; over-complete expansions; packet losses; syndrome decoding; Channel coding; Decoding; Delay; Eigenvalues and eigenfunctions; Error analysis; Error correction codes; Frequency; IP networks; Quantization; Robustness;
Conference_Titel :
Global Telecommunications Conference, 2001. GLOBECOM '01. IEEE
Conference_Location :
San Antonio, TX
Print_ISBN :
0-7803-7206-9
DOI :
10.1109/GLOCOM.2001.965685
