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Table 5 The differences between of DSRC and C-V2X [186]

From: Cloud Control System Architectures, Technologies and Applications on Intelligent and Connected Vehicles: a Review

Topic

DSRC 802.11p

C-V2X Rel. 14/15

Origin

WiFi

LTE uplink

Roadmap

802.11: targets interoperability with 802.11p

C-V2X Rel. 16 based on NR(5G). Operates in a different channel than Rel. 14/15

Deployment

Since 2017. Mass market in 2019

Initial deployment in 2021

Cellular Connectivity

Self managed

Cellular operators can optionally apply theoretical real-time control for higher network utilization

Modulation

OFDM

SC-FDM

Concurrent Transmissions

No

Yes

Line Coding

Convolution code

Turbo code

Transmission Scheduling

CSMA

Semi-persistent sensing of least occupied resource

Time Synchronization

Loose Asynchronous

Very tight Synchronous requirements