Jamming-Resistant Collaborative Broadcast in Wireless Networks, Part II: Multihop Networks
The authors propose in a collaborative broadcast scheme for wireless networks, which applies the Uncoordinated Frequency Hopping (UFH) technique to counteract jamming and exploits node cooperation to enhance broadcast efficiency. In this scheme, some nodes that already obtain the broadcast message are selected to relay the message to other nodes. In this paper, they extend the study to the generalized multihop network scenarios, and provide solutions for important related issues, such as the relay node selection, multiple access control, relay channel selection and packet scheduling. They also study the spatial and frequency (channel) diversity provided by the collaborative broadcast. Simulation results show that the collaborative broadcast achieves low broadcast delay, with low energy consumption and small computational overhead in multihop networks.