Kablosuz sensör ağlarında AODV protokolüne dayalı (gri delik kara delik ve sybil) saldırılarının etkilerine dair kapsamlı bir yaklaşım

In the current days, Wireless Sensor Networks (WSNs) have grabbed extended attention in engineering sectors due to their ability to address big engineering tasks in relatively lower cost. It records specific variation environments such as temperature, pressure etc. also it can be deployed in places where human can't be reached due to their small size (Nano and Micro). The small nodes of WSN is considered as corner stone that plot the performance and time line of overall network. In this article, we concentrate of routing protocol in IEEE 802.11 static wireless sensor network from security perspectives. Three malicious attacks over network layer of AODV routing protocol are studied. The objective of this study was to realize the impact of Black Hole, Gray Hole and Sybil attacks on the AODV routing protocol. Network is implemented to detect the temperature information by adopting 49 sensors in grid topology, each sensor is transmitting the sensing data by multi-hop communication to a supper node called as sink node. Simulation is performed using MANASIM integrated in Network Simulator. Temperature information is generated virtually according to number of sensors and simulation time using the CPR tool in NS-2, hence 933 packets are generated as payload of the network; for each attack, throughput, PDF and NRL are determined after 1300 iterations of the experiment and with effects of 1 to 4 malicious nodes. The network is found more resistive to the Gray Hole attack where optimum results are obtained, the detected average throughput was 3.8375 whereas the PDF and NRL are found 99.065 and 3.2175 respectively.