LTE evolution for vehicle-to-everything services

Abstract

Wireless communication has become a key technology for competitiveness of next generation vehicles. Recently, the 3GPP has initiated standardization activities for LTE-based V2X services composed of vehicle-to-vehicle, vehicle-to-pedestrian, and vehicle-to-infrastructure/ network. The goal of these 3GPP activities is to enhance LTE systems to enable vehicles to communicate with other vehicles, pedestrians, and infrastructure in order to exchange messages for aiding in road safety, controlling traffic flow, and providing various traffic notifications. In this article, we provide an overview of the service flow and requirements of the V2X services LTE systems are targeting. This article also discusses the scenarios suitable for operating LTE-based V2X services, and addresses the main challenges of high mobility and densely populated vehicle environments in designing technical solutions to fulfill the requirements of V2X services. Leveraging the spectral-efficient air interface, the cost-effective network deployment, and the versatile nature of supporting different communication types, LTE systems along with proper enhancements can be the key enabler of V2X services.Hanbyul Seo and Ki-Dong Lee are with LG Electronics; Shinpei Yasukawa is with NTT DoCoMo; Ying Peng is with CATT; Philippe Sartori is with Huawei.

Network Synchronization for Mobile Device-to-Device Systems

“…In the out-of-coverage scenario, network synchronization can in fact be formulated as a consensus problem shown in (6) and (7). Correspondingly, as stated in Challenges 2 & 4, the synchronization algorithm is required to achieve asymptotic consensus on bothf i andθ i defined in (4) when timestamps are perfect, and show robustness to inaccurate timestamps as well.…”

“…In fact, low-latency, vehicle-to-everything (V2X) communication is considered an important use case for D2D. Indeed, standardization in 3GPP is on-going to include this functionality in future releases of LTE (4G) [7], and V2X over D2D is widely considered as an important application for 5G [6,Ch. 4].…”

A Semi-Empirical Performance Study of Two-Hop DSRC Message Relaying at Road Intersections

“…There are now two approaches for V2X communication: one is dedicated short-range communication (DSRC) based on the IEEE 802.11p standard, and the other is based on the LTE-V2V standard [1,2]. The latter was developed on the basis of cellular technology and helps a vehicle to communicate with different types of devices, such as pedestrians with a mobile phone, the infrastructure/network, and other vehicles.…”

A robust ICI suppression based on an adaptive equalizer for very fast time-varying channels in LTE-R systems

“…The UIC is expected to complete operation and functional requirements determination by 2017. A schedule of standardization and establishment of LTE-R is given in [2,3].…”

“…A train speed of up to 500 km/h causes a very fast *Correspondence: hoa.nguyentien@hust.edu.vn 2 School of Electronics and Telecommunications, Hanoi University of Science and Technology, Hanoi, Vietnam Full list of author information is available at the end of the article time-varying channel and leads to the impairment of orthogonality among subcarriers. This is because of the Doppler shift and phase noise, which results in intercarrier interference (ICI).…”