A Novel Wireless Sensor Networks Anti-jamming Technique Based on a Hybrid DS-CDMA/ OFDM/ FH

This paper utilizes the combination of DS-CDMA with OFDM
and FH in order to enhance anti-jamming technique in wireless
sensor networks (WSN). The DS-CDMA component provides
user isolation and protection whilst preserving the ability of
many users to use the same carrier frequency simultaneously.
The OFDM component removes ISI and enhances resistance to
multipath effect. The FH component solves the near-far
problem inherent in DS-CDMA. The proposed technique
complicates the jammer task by expanding the number of
randomly generated and used frequencies. The suggested
technique can be adapted to be used in different transmission
data rate and different jamming levels