Smart healthcare is revolutionizing healthcare delivery by integrating the advantages of IoT, mobile technology, and cloud computing. Cloud computing has greatly facilitated the integration of healthcare institutions, caregivers, and patients in the health business to exchange information. Low latency and quicker reaction times are the primary factors driving efficient healthcare systems’ implementation. Therefore, prompt communication across healthcare institutions is crucial in general, but considerable delays among many stakeholders might lead to catastrophic consequences during an emergency. Therefore, innovative methods such as edge computing and artificial intelligence (AI) can effectively address these issues. For a packet to be transmitted from one point to another, it is necessary for the “quality of service” (QoS) requirements to be fulfilled. QoS, or Quality of Service, pertains to the level of performance and reliability that a service provides to its consumers. QoS metrics like as throughput, bandwidth, transmission delay, availability, jitter, latency, and packet loss are essential in this context. We prioritize the individual devices that exist at various levels of the smart healthcare infrastructure and the quality of service (QoS) needs of the healthcare system as a whole.