In this paper, we are going to present a data dissemination protocol for wireless multimedia sensor networks (WMSN). The proposed protocol entitled as PLAF (Priority based Location Aided Flooding) is used for packet dissemination in WMSN. PLAF considers network as a virtual grid. Depending on its geographical position, each node is placed in one of network cells. We prevent sending redundant packets, and as a result, network’s consumed energy will be reduced. Proposed protocol considers priority for traffics. Depending on packet’s priority, PLAF makes decision about its routing. Consumed energy the main parameters in protocol design. The proposed protocol uses LAF as base. Different aspects of PLAF efficiency have been evaluated. Performed simulations show that PLAF has achieved all of its goals.

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