Abstract:

As the distributed and dynamic network architecture, the broadcast nature of wireless medium and stringent resource constraints of wireless devices makes MHWN （multihop wireless network）extremely attractive and vulnerable to malicious attacks. So how to ensure continuous network service becomes a critical problem especially in jammed situations. In this paper，interference avoidance mechanisms are  well concerned. Then a proactive multipath routing mechanism based on interference dynamic measuring is proposed to improve the MHWN performance under jamming. The proposed mechanisms need extra support in the form of routing interference entries to build higher robust antijamming paths in MHWN, while keeping the less reroute request times. Our evaluations based on NS2 show that the proposed mechanisms can provide robust antijamming paths for MHWN.

Key words: MHWN（multihop wireless network）;interference;multipath