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