Three-Dimensional Resource Allocation in D2D-Based V2V Communication

Usman Ali Khan,Sang Sun Lee

doi:10.3390/electronics8090962

Abstract

Device-to-Device (D2D) communication is the major enabler of Vehicle-to-Everything communication in 3rd Generation Partnership Project (3GPP) Release 14. The user equipment/device can engage either in direct communication with the infrastructure, use a relay node, or it can communicate directly with another device with or without infrastructure support. The user equipment can be either a hand-held cellular device or a moving vehicle. The coexistence of cellular user equipment with the vehicular user equipment imposes different Quality of Service (QOS) requirements due to the rapid mobility of the vehicles and interference. Resource allocation is an important task by which the user equipment is allocated the required resources based on different QOS parameters. In this paper, we introduced the case of three types of users which share uplink resources: two types of vehicular users, and a third user that acts as a handheld cellular phone, which is nearly static. By keeping in mind, the differential QOS requirements for the three types of users, we have calculated the optimum power and then applied a 3-dimensional graph-based matching and hypergraph coloring based resource block (RB) allocation.

Highlights

Vehicular communication has received a great deal of attention from the research community in the recent past
While earlier works have mostly considered conventional cellular users (CUE) and V2I links as the same, we have considered them as two the conventional cellular users themostly same, mobile we have considered them as largetwo different types of users for the(CUE)
Different transmit powers of the V2I user can result in a different capacity, and we shows the user can either be an independent interferer to another type of user or it has no relation need that to check if our optimal power allocation results in optimal capacity

Summary

Introduction

Vehicular communication has received a great deal of attention from the research community in the recent past. The Dedicated Short-Range Communication (DSRC)-based Vehicular Adhoc+82. D2D communication, which is the enabler of V2X, has a large number of applications in terms of increasing spectral efficiency, cellular offloading, emergency communication, and IoT enhancement, to name a few. It allows devices in the proximity of each other to communicate directly with each other, with or without the support of the infrastructure. Inband allows the devices to communicate in the licensed spectrum in which the cellular users are the primary users, whereas D2D users become the secondary users

Objectives

Methods

Results

Discussion

Conclusion