Talks at Nordita Programs [before October 2010]

Self-organized Synchronization in Wireless Networks

by Prof. Olav Tirkkonen (TKK)

Europe/Stockholm
Nordita seminar room

Nordita seminar room

Description
In wireless networks it is beneficial for the nodes to share a notion of time, at least in a periodic (clock) sense. In existing cellular networks, nodes may get their timing from a centralized server. In networks without centralized control, however, such as ad hoc and sensor networks, time synchrony has to be generated in a self-organized manner. Each node decides its preferred timing based on information on the timings of other nodes. In the literature, synchronization algorithms based on (pulse) coupled oscillators have been widely studied, mostly in the setting of a fully connected network. In this talk, synchronization in networks with nearest neighbor coupling is studied. Synchronization based on pulse coupled oscillators is compared to simple cyclic averaging algorithms.