DDoS Attacks Impact on Data Transfer in IOT-MANET-Based E-Healthcare for Tackling COVID-19

The Covid-19, a pandemic situation, effects the economy of the whole world severely and is gaining much huge attention in the field of research currently across the globe. The Internet of things (IoT) technology is playing a great role for taking care of the patients by monitoring and controlling the symptoms and is very much essential for the developing countries, where monitoring of health of huge population has its own challenges. So the IoT and its amalgamation with mobile ad hoc network (MANET) acts as base of networks where devices send information among each other wirelessly thus also named as wireless mesh networks (WMN), in which various nodes are either stationary or allied with static position. Sensors and different other devices involved in e-healthcare sector used in WMN converse wirelessly and hence become the main gate to a numerous susceptibilities. The main aim of this research study is to evaluate the performance of reactive, secured and hybrid routing protocols for throughput as one of the important quality of service (QoS) parameters in absence as well as in presence of distributed denial of service (DDoS). The NS-2(network simulator) is used to simulate AODV (ad hoc on-demand vector, SAODV (secured AODV) and hybrid wireless mesh protocol) in scenario of changing nodes. The comparative analysis concludes the HWMP as most suitable protocol among the other two routing protocols with impact on throughput for handling DDoS attacks. This research study aids in providing implications to enhance existing protocols and alleviate the consequence of DDoS instigated by such attacks.