Abstract: This paper addressed the information dissemination issue over wireless sensor networks. Based on the information propagation model of complex dynamic networks, an energy and delay optimized infom}ation dissemination strategy(EI}OIDS) was proposed for wireless sensor networks,which didn't need the location information and topology information. I3y using the dynamics characteristic that the process of propagation grows outside with time from the source of information, and the received signals strength indication(RSSI)，the algorithm evaluates the relative distances between senders and receivers, and decides forwarding priorities of nodes and time delay of MAC. The algorithm ensures the maximum coverage of new area, avoids effectively the collision of nodes and optimizes the delay of the whole network. Meanwhile, a joint of the listening mechanism of MAC with rumor spreading idea is used for controlling the forwarding priorities of nodes, restraining the redundant flooding packets and minimizing the energy consumption.

Key words: Wireless sensor networks, Complex dynamic networks, Information dissemination, Flooding algorithm