• multi hop
• real time communications
• wireless networks
• energy aware

This work presents an extension of the WBuST real-time procotol for multi-hop wireless networks composed of embedded devices. These devices, usually battery powered, also requires careful managing of the power consumption in order to extend the battery life at most. This protocol organizes the network as a cluster tree and provide the routing capabilities to transfer the packets among the devices, guaranteeing the packet delivery within their deadlines. At the end of the document, an analysis of the protocol performance are presented.