Robustness of Location Based D2D Resource Allocation against Positioning Errors

Abstract

Device-to-Device (D2D) communications underlaying cellular network exploits physical proximity of the devices and aims at enhancing resource utilization, coverage, data rates and Quality of Service (QOS). Further, it enables the network operators to offload conventional network routed traffic to direct peer-to-peer links and could also support new application fields, such as Machine-to-Machine (M2M) and Vehicle-to-Vehicle (V2V), communication. In order to enable D2D communication, allocating resources (Physical resource blocks: PRBs) to D2D links by reusing cellular resources is a vital procedure. There are several resource allocation (RA) schemes that facilitate resource reuse of cellular PRBs for D2D communication. In most of these schemes, the crucial information for deciding upon PRB reuse is positions of D2D pairs and cellular users, so that mutual interference can be reduced. Further, there are certain schemes that rely on angular information of users to carry out resource allocation for D2D users. Thus, accuracy of position information plays an important role for employing these RA schemes in real world. This paper discusses RA schemes that are based on position/angular information and evaluates the robustness of location based RA schemes against positioning errors in real world deployment.Index Terms-D2D communication, location information based resource allocation, virtual sectoring, position estimation

Fractional Frequency Reuse Scheme for Device to Device Communication Underlaying Cellular on Wireless Multimedia Sensor Networks

“…It also adopts On/Off switching frequency to reduce the number of outage users. In [ 47 ], the authors propose a virtual sectoring concept to sectoring based on D2D communications. Because of the virtual sectoring, the sectoring can be controlled adaptively according to a density of D2D pairs.…”

Post-resource sharing power allocation in cellular networks to coexist with D2D underlay

“…Device to Device (D2D) communication is a concept where mobile users in close proximity can communicate over a direct link between them without routing their traffic via base station [2]. D2D is treated as an important technology in 5G, capable of managing high user density and data volume [1].…”

“…D2D is treated as an important technology in 5G, capable of managing high user density and data volume [1]. D2D communication can be carried out in two major ways, namely: 1) Overlay: D2D communication takes place over dedicated spectrum [2]. 2) Underlay: D2D links and conventional cellular links share the available spectrum in a cell for their transmissions [2].…”

“…D2D communication can be carried out in two major ways, namely: 1) Overlay: D2D communication takes place over dedicated spectrum [2]. 2) Underlay: D2D links and conventional cellular links share the available spectrum in a cell for their transmissions [2]. D2D underlay allows for better spectrum utilization but, mutual interference among D2D pairs and cellular users (CUE) would hamper the SINR at receivers, there by reducing the performance.…”

“…There are several resource allocation schemes in literature that discuss resource reuse between D2D pairs and CUEs that would cause minimum interference to each other [2] [3]. Fur-ther, several proposals are made to regulate transmission power of D2D users to mitigate interference [3] [4].…”