DSR: Dynamic Source Routing
n Source Routing: sender of packet determines complete
sequence of nodes along path and lists them in packet
header
n use dynamic route discovery to determine path
n advantages:
no periodic routing advertisement messages
n saves bandwidth when there is little change in network
n saves battery power (no need to send/receive messages)
ad-hoc networks have many redundant links, which cause flooding
of routing messages
no assumption of link symmetry
possible to react to changes faster than state-based or distance-
vector based protocols