Spatial-SWIM

This is a NS-3 simlation of Medley protocol

How to run a Simulation

./waf --run "simulate-energy"  

Ther are multiple options could be set to simulate different failure cases and topology setting.

• Option topo_type sets the topology used. The value could be zero to two, zero by default. 0 - grid, 1 - random, 2 - cluster
• Option power_k represents the exponential parameter to localize pinging. The larger power_k is, the more localized the pings will be. power_k is by default 3.
• Option n_direct_ping sets the number of direct pings that each node sends in each time period, by default 1.
• Option n_ind_ping sets the number of helpers that each sender needs for help with indirect ping.
• Option num_failure sets the number of simultaneous fail-stop nodes, by default 1.
• Option t_failure sets the time that the failures happen, by default 1500.
• Option t_max sets the system termination time, by default 3000.
• Option fail_mode simulates the fail-stop pattern. The mode could be one of the following:
  • Fixed: for grid and random, randomly choose several nodes to fail
  • Intra: for cluster mode only, the simultaneous failures happen within one of the clusters
  • Inter: for cluster mode only, the simultaneous failures happen among two neighbor clusters and the failed nodes are relatively close to each other.
  • Separate: for cluster mode only, the failed nodes are spread in different clusters.
• Option input_mode is the postfix of topology-related files' name, formatted as topo_type+number of nodes in network, e.g. random_25.
• Option packet_loss sets the packet loss rate (percentage) in network 0 - 100. By default is 0, which is reliable network with no packet loss.
• Option timeout_multi sets how many times the suspecion timeout is of period length. By default is -1, which will be set as 3 * ceil(log(N+1)) during system initialization, where N is the number of the nodes in the network.
• Option r_tmp_outage sets the temporary outage rate of each nodes, by default 0.0.
• Option t_tmp_outage sets the maximal time of a temporary outage, by default 100 time unit.

Running command example

./waf --run "simulate-energy --topo_type=cluster --power_k=3.0 --fail_mode=domain --input_mode=cluster_25 --num_failure=6"