Cooperative Scheduler to Enhance Massive Connectivity in 5G and Beyond by Minimizing Interference in OMA and NOMA

The fifth-generation (5G) and beyond 5G (B5G) wireless networks introduced massive machine-type communications (mMTC) to cope with the growing demand of Internet Things (IoT) applications. However, heterogeneous characteristics IoT diverse quality service (QoS) requirements may lead severe interference that could degrade expected QoS cellular ecosystem. Therefore, this article studies impact caused by mMTC connections. We theoretically model intercell (ICI) minimization problem for existing orthogonal multiple access (OMA) technique propose its corresponding solution. Furthermore, we jointly solve ICI cochannel users when nonorthogonal (NOMA) is used. For proposed OMA NOMA schemes, design a cooperative scheduler reduce such interference. results show our schemes provide up 58%, 75%, 100% more improvements in terms user’s data rates, energy consumption, connection density, respectively.