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Video content can be provided to an end user by transmitting video data as a sequence of Internet Protocol (IP) packets over the network. When the network contains a wireless link, packet erasures occur because of occasional deep fades. In order to maintain a sufficient video quality at the end user, video packets must be protected against erasures by means of a suitable form of error control. In this contribution, the authors investigate two types of error control: Forward Error Correction (FEC), which involves the transmission of parity packets that enables recovery of a limited number of erased video packets, and the use of an Automatic Repeat reQuest (ARQ) protocol, where the receiver requests the retransmission of video packets that have been erased.
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