HOME UNIT 1 UNIT 2 UNIT 3 UNIT 4 UNIT 5 Perspectives and a Middleware Approach Toward 5G According to [62], novel middleware architecture approaches toward 5G will not suffer major changes compared to what we have today in terms of SOA-based IoT middleware systems, and hence, the core of the architecture shown in Fig. 3 probably will be maintained. However, as mentioned in Sect. 3, IoT middleware systems will have to support the requirements imposed by 5G which will result in specific changes to allow the applications requirements demanded by 5G. Figure 4 illustrates a possible system architecture for 5G-based IoT Middleware with two application examples: (a) a “Healthcare Monitoring application” oriented to mission-critical services in a hospital (i.e., a grou...