LAUSR

Cyber-Physical Systems (CPS) is an emerging technology of intelligent systems with the united computational performance and physical capacities. Due to the growing system complexity and system directness the CPS is affected by the malicious attacks which lead to improve the CPS performances with an efficient data transmission method. In this paper , CPS making use of the Orthogonal Frequency-Division Multiplexing (OFDM) to achieve the high data rate requirement of modern communications. The Priority Aware Frequency Domain Polling (PAFDP) protocol is proposed to detect the priority based node which identified by using the throughput and data rate from the group of nodes in the network and also the priority based nodes are identified as malicious nodes which are avoided to minimize the packet loss in the existing network. The performances of the PAFDP-OFDM-CPS are analysed in terms of various QoS parameters such as delay , energy , Packet delivery ratio , packet loss ratio , through put and overhead so that the proposed method is assessed by three existing methods such as Adaptive Duty Cycle Control Based Opportunistic Routing (ADCCOR) protocol , Trust Aware Routing Framework (TARF), Trust Aware Wireless Routing Protocol (TAWRP) and It was found that the performance of the PAFDP-OFDM-CPS is improved much compared to the above said three protocols.