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.