MANET: Characteristics and Challenges
n Ad-Hoc Networks, radio communication, multi-hop
connections
n Routing protocols (AODV, DSR, OLSR) typically find
shortest path (minimum hop count), though a range of
other metrics (ETX, maximum throughput, minimum
energy consumption, etc.) have been explored as well
n Network bandwidth is scarce:
Ø Limited by wireless technology
Ø Self-interference of single-radio multi-hop communication reduces
end-to-end bandwidth for single flows
Ø All nodes share common media: interference, collisions, back-offs
n Question: how well do routing protocols utilize scarce
wireless bandwidth?