[ns] MAC protocol
Hi all! Someone knows the features of the mac-simple module? I tried to find something, but from the manual to the mailing list I founded nothing. It wuold be enough some links.. I'd like also to check, and maybe to change the size of the contention window in 802_11, but I can't find it. Many thanks! Curi
[ns] 802.11 trace file
Hi all! I'm tryng to solve my collisions problem: *802.11 *only broadcast transmission. *I haven't modified nothing in the mac and the ip layer. I'm using default settings. Analysing the trace file I can read, for example so: s 83.229636473 _16_ AGT --- 16437 myag 52 [0 0 0 0] --- [16:0 -1:0 32 0] r 83.229636473 _16_ RTR --- 16437 myag 52 [0 0 0 0] --- [16:0 -1:0 32 0] s 83.229636473 _16_ RTR --- 16437 myag 52 [0 0 0 0] --- [16:0 -1:0 32 0] s 83.230131473 _16_ MAC --- 16437 myag 104 [0 10 800] --- [16:0 -1:0 32 0] r 83.230964284 _12_ MAC --- 16437 myag 52 [0 10 800] --- [16:0 -1:0 32 0] D 83.230287491 _15_ MAC COL 16437 myag 104 [0 10 800] --- [16:0 -1:0 32 0] The collisions happens always when the packet is 104 long. But I use a fixed 52 long header, without any payload.. So... why the packet (always 52 byte long) sometimes is sended by the MAC-layer as a 104 long one? And the collision is always signed with a 104 long packet, while a correct reception is always signed with a 52 long packet as in the previous example. Someone can explain me the reason? Many thanks! Curi
