Hi all, I need to implement a selective retransmission mechanism in ns-2 for MPEG-4 multicast.
The sample MPEG-4 trace file is given 1I 2676 3 segm at 66 ms 2P 534 1 segm at 99 ms 3B 463 1 segm at 132 ms 4B 384 1 segm at 165 ms 5P 649 1 segm at 198 ms 6B 411 1 segm at 231 ms 7B 434 1 segm at 264 ms As there is no retransmission for multicast in 802.11. I need to re-transmit frame if its type is "I". Please suggest/help me how I can modify MAC 802.11 in ns-2 to differentiate different frames. and selective retransmission.. Thanks in advance Khalil
