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multiprotocol encapsulation forward error correction (DVB-H) (MPE-FEC)

Multiprotocol Encapsulation and Forward Error Correction(MPE- FEC) are techniques used in DVB for Handhelds( DVB-H) to improve reception in poor reception conditions, namely poor carrier to noise ratio( CNR) and Doppler effect reception degradation. In addition, the techniques improve pulse interference.

The MPE-FEC method provides additional high- performance channel coding and a temporal interleaving technique. Since DVB-H is a unidirectional broadcast transmission, the receiving device cannot provide feedback to the transmitter about erroneously received data packets. It is thus a forward error correction technique that uses added parity information to support error correction. To ensure error-free reception of data packets, the method uses a large parity overhead of 25%. This parity information ensures error-free datagram reception even under poor reception conditions.

Although MPE-FEC does not have to be implemented in the mobile devices, it is implemented in all devices.

Informations:
Englisch: multiprotocol encapsulation forward error correction (DVB-H) - MPE-FEC
Updated at: 04.07.2011
#Words: 132
Links: multiprotocol encapsulation (DVB) (MPE), forward error correction (FEC), digital video broadcasting (DTV) (DVB), DVB for handhelds (DVB-H), carrier to noise ratio (CNR)
Translations: DE
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