Oppo-Flood: An Energy-Efficient Data Dissemination Protocol for Asynchronous Duty-Cycled Wireless Sensor Networks

Figure 8

The packet header structure of IEEE 802.15.4 and Oppo-Flood. For opportunistic forwarding, the header does not need to include the source and destination address. Instead, Oppo-Flood includes the receive status fields, including group ID and Rx bitmap. (a) IEEE 802.15.4 header. (b) Oppo-Flood header.

(a)

(b)