IP-recovery in the DVB-H link layer for TV on mobile

摘要

In the nearby future, DVB-H Internet protocol based TV on mobile will be available in mobile devices. Due to transmission over error-prone channels, IP-datagrams may be corrupted. The DVB-H link layer is equipped with forward error correction (FEC), allowing correction of defect IP-datagrams, using two-bit signaling. Locators are applied to find correctly received IP-datagrams and possible corrected IP-datagrams, for the situation that forward error correction fails to correct all incorrectly received IP-datagrams. Experimental research has shown that for the situation that the received data cannot be fully corrected by the FEC, considerable number of IP-datagrams can be recovered using the locator information. The successful recovery depends on the received IP-datagram length and the error probability and results in an improved audiovisual decoding quality.