Micha Kaliszan Jakub Suchecki Bio-inspired vs. Classic approaches - - PowerPoint PPT Presentation

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Micha Kaliszan Jakub Suchecki Bio-inspired vs. Classic approaches - - PowerPoint PPT Presentation

The bridge experiment applied to network routing Micha Kaliszan Jakub Suchecki Bio-inspired vs. Classic approaches overall throughput reaction to failures non-deterministic vs. deterministic Graph generator Parameters:


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SLIDE 1

The bridge experiment applied to network routing

Michał Kaliszan Jakub Suchecki

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SLIDE 2

Bio-inspired vs. Classic approaches

  • verall throughput

reaction to failures non-deterministic vs. deterministic

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SLIDE 3

Graph generator

Parameters:

number of nodes length of the shortest path between two

designated nodes

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SLIDE 4

Graph generator

Generated graph with

shortest path (blue)

Time savings on large

graph structures

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SLIDE 5

Graph generator

Pheromone

distribution (green)

Shortest path (blue)

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SLIDE 6

Model of the optimized network

Two nodes chosen, with a known shortest path

between them

Link between the nodes optimized

simultaneously for transmission in both directions

Possibility of generation of an initial, suboptimal

path between the nodes, marked by the initial pheromone distribution

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SLIDE 7

Ant-based routing algorithm

Two groups of ants: ‘forward’ and

‘backward’

Each time step new ants sent from the

source node and the destination node

Two groups using different types of

pheromones

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SLIDE 8

Ant-based routing algorithm

Each group of ants update differently both

groups of pheromones

‘Backward’ ants update much stronger

pheromones for the ‘forward’ ants, and

  • pposite.
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SLIDE 9

Parameters of the simulation

new ants sent each time step speed of pheromone evaporation pheromone drop TTL of each ant

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SLIDE 10

Simulation results

Parameters:

100 ants per time

step

TTL 50 pheromone drop 0.2 evaporation rate 0.8 200 nodes shortest path: 15

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SLIDE 11

Thank you for your attention!

Questions?