Many real-time applications need reliable indoor wireless access. Using a network simulator, the study examines indoor routing techniques’ throughput, latency, packet loss, and packet receipt. Many routing protocols were tested in realistic interior settings using modern network simulations to establish their real-time suitability. Our simulations show each protocol's data transit efficiency, latency, packet loss, and packet reception reliability. Some protocols reduce packet loss and increase throughput, while others reduce latency and increase packet receipt. These differences are crucial for selecting the right solution for real-time operational and environmental limitations. A complete comparison study optimizes indoor wireless networks by choosing real-time routing protocols. Our findings are important because smart building management, industrial automation, and emergency response systems need rapid, reliable communication.