Abstract-The Internet of Things (IoT) heralds a vision of future Internet where all physical things/devices are connected via a network to promote a heightened level of awareness about our world and dramatically improve our daily lives. Nonetheless, most wireless technologies in unlicensed band cannot provision ubiquitous and quality IoT services. In contrast, cellular networks support large-scale, quality of service guaranteed, and secured communications. However, tremendous proximal communications via local base stations (BSs) will lead to severe traffic congestion and huge energy consumption in conventional cellular networks. Device-to-device (D2D) communications can potentially offload traffic from and reduce energy consumption of BSs. In order to realize the vision of a truly global IoT, we propose a novel architecture, i.e., overlay-based green relay assisted D2D communications with dual batteries in heterogeneous cellular networks. By optimally allocating the network resource, our proposed resource allocation method provisions the IoT services and minimizes the overall energy consumption of the pico relay BSs. By balancing the residual green energy among the pico relay BSs, the green energy utilization has been maximized; this furthest saves the on-grid energy. Finally, we validate the performance of the proposed architecture through extensive simulations. Index Terms-Device-to-device (D2D) communications, dual batteries, heterogeneous networks, Internet of Things (IoT), resource allocation.
Based on the overlay spectrum sharing approach and green relay BSs, the literature REF proposes a novel architecture to facilitate D2D communications for Internet of Things (IoT) in heterogeneous cellular networks.
Green Relay Assisted D2D Communications With Dual Batteries in Heterogeneous Cellular Networks for IoT
IEEE Internet of Things Journal
IEEE Internet of Things Journal
Computer Science