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Particle Swarm Virtual Coordinates (PSVC) is the second method of self-organizing virtual coordinates, which uses the Particle Swarm Optimization (PSO) technique to determine locations. Unlike Virtual Localization, which is constantly updating and can easily change when new nodes join or existing nodes are dropped, PSVC converges to a more stable network topology. It still allows new nodes to join and certain nodes to be dropped but has more limitations.

PSVC has several stages and hence takes longer to initialize the coordinates of all nodes before packets can be sent, requiring a longer initial delay than Virtual Localization. In particular, in very large networks, PSVC will likely take a long time to start up as nodes must wait for all nodes to converge to an agreement before progressing.

-- XiaohongWu - 2012-01-24

Topic revision: r1 - 2012-01-24 - XiaohongWu
 
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