Abstract:
Wireless Sensor Networks (WSNs) are gaining a lot of attention from researchers due to their massive applications. Network security is one of the important requirements of those applications. This chapter analyses possible network attacks that are essential for researchers to understand while developing robust security countermeasure. In this study, a systematic overview of different kinds of attacks for WSNs has been carried out and a critical analysis of the existing research results is presented. In this chapter, we also observe jamming attack consequence on WNSs in depth by investigating the effect of jamming attack on performance of WSN’s communication using binary spreading sequences. The binary sequences in this chapter are generated according to the IEEE 802.15.4a standard. Mathematical expressions of probability of bit error in a communication channel are derived considering the effects of noise and channel fading. Further, we investigate the effects of using interleaver and deinterleaver on bit error rate (BER) in the case of jamming. Matlab simulation results are presented to confirm the validity of the derived theoretical expressions.
