Feasibility study of enabling V2X communications by LTE-Uu radio interface

Abstract

Compared with the legacy wireless networks, the next generation of wireless network targets at different services with divergent QoS requirements, ranging from bandwidth consuming video service to moderate and low date rate machine type services, and supporting as well as strict latency requirements. One emerging new service is to exploit wireless network to improve the efficiency of vehicular traffic and public safety. However, the stringent packet end-to-end (E2E) latency and ultra-low transmission failure rates pose challenging requirements on the legacy networks. In other words, the next generation wireless network needs to support ultra-reliable low latency communications (URLLC) involving new key performance indicators (KPIs) rather than the conventional metric, such as cell throughput in the legacy systems. In this paper, a feasibility study on applying today's LTE network infrastructure and LTE-Uu air interface to provide the URLLC type of services is performed, where the communication takes place between two traffic participants (e.g., vehicle-to-vehicle and vehicle-to-pedestrian). To carry out this study, an evaluation methodology of the cellular vehicleto-anything (V2X) communication is proposed, where packet E2E latency and successful transmission rate are considered as the key performance indicators (KPIs). Then, we describe the simulation assumptions for the evaluation. Based on them, simulation results are depicted that demonstrate the performance of the LTE network in fulfilling new URLLC requirements. Moreover, sensitivity analysis is also conducted regarding how to further improve system performance, in order to enable new emerging URLLC services.

Multi-RATs support to improve V2X communication

“…In this part, the simulation results obtained from a system level simulator are provided and the LTE technology is applied to model the radio link performance. The evaluation methodology of packet E2E latency over PC5 and LTE-Uu interfaces are introduced in [19] and [13], respectively. Moreover, since our focus in this work is on the RAN, the message transition latency among different BSs is not inspected in detail.…”

“…The uplink transmission refers to a point-to-point (P2P) communication process. The algorithm to evaluate the uplink latency by applying the LTE-Uu interface is presented in [13].…”

Minimizing E2e Delay in V2x Over Cellular Networks: Review and Challenges

“…In [30], knowing that future Cellular networks targets several services with broad range of QoS measures, beginning with streaming HD videos to using low data rate services plus accommodating limited latency requirements, this research aims to study the use of LTE-Uu Radio interface [60], [61] to achieve feasible implementation of C-V2X that has limited E2E delay and high reliability communication. To achieve this study, simulations are carried out by including E2E latency in the key performance indicators (KPI) with various scenarios of V2X to test LTE-Uu air interface to perform URLLC service type.…”

“…Therefore, communication security is very important. The security attributes include authentication, availability, data integrity, confidentiality, non-repudiation, real-time constraints, and attacks against these security attributes are as follows [30], [36]- [39]:…”

mmWave-NOMA-Based Low-Latency and High-Reliable Communications for Enhancement of V2X Services

“…Intelligent transport system (ITS) has been one of the highly concerned transmission systems in the fifth generation (5G) enabled artificial intelligence (AI) era, since it can provide security, transport efficiency, and energy conservation [1]. To meet the new requirements of 5G ITS, the 3rd generation partnership project (3GPP) has proposed an enhanced vehicle-to-everything (eV2X) network [2], [3], which contains two communication modes, i.e., PC5 interface for sidelink (SL) [4] and Uu interface for downlink/uplink (DL/UL) [5]. Particularly, the novel use cases in eV2X networks have more critical low latency and high reliability (LLHR) constraints.…”