Error Models for the Transport Stream Packet Channel in the DVB-H Link Layer

Evaluation of Background Push Content Download Services to Mobile Devices Over DVB Networks

“…This model is widely used in literature ( [19], [20]), since it simulates well the error bursts typical in wireless networks. This model is based on two states: on/off.…”

“…Finally, recalling that the AL-FEC decoder needs to receive at least the number of source symbols k times the inefficiency ratio inef_ratio, the number of cycles needed to download a file when AL-FEC is applied is: (20) Therefore, with these formulas it is possible to calculate the number of cycles needed to download a file, depending on whether AL-FEC is used or not: the expected number of new packets received per loop is calculated iteratively until there are enough packets to recover the file.…”

Three-Dimensional Media for Mobile Devices

“…The presence of artifacts depends very much on the coding algorithms used and how the decoder copes with the channel errors. In the DVB-H transmission, the most common are burst errors, which result in packet losses distributed in tight groups [55]. In MPEG-4-based encoders, packet losses might result in propagating or nonpropagating errors, depending on where the error occurs with respect to key frames, and the ratio between key and predicted frames.…”

“…In MPEG-4-based encoders, packet losses might result in propagating or nonpropagating errors, depending on where the error occurs with respect to key frames, and the ratio between key and predicted frames. Error patterns of wireless channels can be obtained with field measurements, and then used for simulation of channel losses [55], [56]. In multiview video encoding, where one channel is predicted from the other, usually error burst is long enough to affect both channels [57].…”

Packet Loss in Real-Time Services: Markovian Models Generating QoE Impairments

“…4. Four-state Markov model [24] As stated in [24], the run length distribution for the dwell time in the good and bad state groups is given by…”