EE450 Lab 2

After forcing handshake no more collisions were

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: by connecting to the AP. The beacon frames define a lot of information but most importantly the ssid, the supported rates, sequence number for synchronization and other information about automatic energy saving… We can see (in node 5 capture) a collision at t=4s. 192.168.1.7 and 192.168.1.6 both send at the same time a packet to server. 192.168.1.7 backs off and waits. After forcing handshake, no more collisions were detected. Note that even the AP sends RTS requests before sending. 3. Task 3 1) OLSR The routes start being created ever since the nodes start. The nodes keep sending Hello packets to update their routing tables. Routing messages contain information such as the sender address, validity time, sequence number and neighbor address. All packets from node 6 to 0 are directly sent (we can see that in the frame information: source and destination addresses). 2) AODV The routes start being created both when nodes start and also when a route is needed for transmission of a packet. Both AODV routes Reply and Request are exchanged. They typically contain source and destination address and destination sequence number. 3) C...
View Full Document

Ask a homework question - tutors are online