Kunz: Accurately Predicting Residual Energy Levels in MANETs
OLSR and Our Modification
,OLSR: uses
MPRs to
–Efficiently
propagate topology information
–Constrain
routing to MPRs while guaranteeing shortest path -> only partial topology
is known
,Two key
protocol messages
–Hello: propagate 1-hop and 2-hop neighbor information, used to route to
close neighbors and to select
MPRs
–TC (topology control) messages: propagate partial topology information to
all nodes, allows them to build
a (partial) view of topology and determine shortest paths
,Modification:
–Piggyback
nodal energy level onto Hello and TC messages, including a timestamp
–Nodes build a database
for all known/reachable nodes and their known energy levels, based on most recent report
–Periodically
report actual and perceived nodal energy levels