Energy efficient resource and power allocation for uplink underlay D2D communication in HetNet-based 5G network

Device-to-Device (D2D) communication is a revolutionary technique to enhance the data rate, spectrum efficiency and energy efficiency in wireless network. It is important to have this technique due to the high demand of users and spectrum scarcity. Each D2D users can share the resource of the cellular user and transmit power of the user can create an interference to the user sharing the same resource. So, there needs a mechanism to govern the power and effectively allocate the resource to mitigate the interference created by sharing of resource between users. In this paper, D2D communication and small cells are introduced to form the Heterogeneous Network (HetNet). We propose a Sequential High Throughput Claim algorithm (SHTCA) to allocate resources to the D2D users such that Quality of Service (QoS) of the cellular users are maintained by applying the interference threshold to the cellular users. This provides the best throughput to the D2D users. Transmit power of the D2D and cellular users are optimized using the Genetic Algorithm (GA) such that interference between D2D and cellular users is effectively handled. The proposed work is differentiated over other existing algorithms and outcomes are compared in terms of energy efficiency, throughput and battery utilization in the network.