In this review paper, we have critically reviewed several research studies that ‎have ‎used ‎OPNET ‎simulation tools to simulate, analyze, and optimize the ‎performance of wireless ‎networks ‎for the ‎transmission of medical data. There ‎are growing dependencies on electronic ‎health ‎records ‎‎ (EHRs), telemedicine, ‎and IoT enabled medical devices which have created a ‎critical ‎priority ‎for ‎healthcare system worldwide: the secure, reliable, and timely ‎transmission ‎of ‎sensitive medical ‎information. It also explores the latest trends, such as ‎support ‎for next-‎generation wireless standards ‎‎ (e.g., Wi-Fi 6/6E and 5G) and ‎hybrid simulation ‎approaches. By ‎highlighting cross-layer ‎optimization ‎strategies and ways to converge ‎experimental reading with ‎simulation results ‎in the ‎real world, this review pinpoints important ‎directions for future ‎research. ‎The paper summarizes ‎these findings across multiple ‎simulation ‎studies and discusses ‎using ‎OPNET in health data ‎communication, because its ‎more ‎secure, and efficient to ‎accommodate the growing demands of ‎the ‎healthcare industry in the ‎‎21st ‎century, where the ‎results show that IPsec ‎protocol ‎achieves ‎highest average ‎throughput, ‎reaching (100 Mbps, ‎‎85 Mbps, ‎and 60 Mbps) for (Low, ‎Medium, and ‎high) traffic ‎load ‎respectively‎‎.‎

OPNET health data transfer electronic health records telemedicine healthcare IoT network ‎modeling security mechanisms Quality of Service throughput latency cross-layer ‎optimization