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  • Nov 16, 2023

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The impact of 5G on connected cars & smart infrastructure

The rollout of 5G networks is set to revolutionize connectivity and enable the full potential of the Internet of Things (IoT). One major area this will impact is transportation infrastructure and connected vehicles. 

With 5G, self-driving cars will be able to communicate with each other and with smart city infrastructure in real-time. 

This level of connectivity and data transfer promises to make autonomous vehicles practical and safe. 5G will also allow vehicles to become mobile sensors, providing data to smart city mapping and traffic optimization systems. 

The implications of 5G for the future of mobility and smart infrastructure are vast. This article explores the ways 5G will transform connected cars and intelligent transportation systems.

What is 5G?

5G is the 5th generation of cellular mobile communications. It succeeds 4G, bringing massive increases in speed (up to 20 Gbps), near-instantaneous responsiveness (latencies below 1 ms), and connection density. 

5G utilizes higher frequency radio waves that have a shorter range but increased bandwidth. It requires the deployment of small-cell infrastructure. The first 5G specification was completed in 2018 with commercial rollouts starting in 2019. 

5G enables new use cases like smart transportation systems, industrial automation, and remote healthcare that require highly reliable, low latency, high-bandwidth connectivity. 

Overall, 5G represents a major leap in wireless technology and infrastructure that will expand the possibilities for mobile applications and connected devices.

What are the benefits of 5G for connected cars and smart infrastructure?

Real-Time Connectivity

The ultra-low latency and high bandwidth of 5G networks will allow real-time communication between vehicles, infrastructure, pedestrians, and broader networks, enabling critical safety technologies like collision avoidance.

Enhanced Mapping and Traffic Optimization

The increased data transmission capabilities will facilitate vehicles sharing large amounts of mapping and traffic data with smart city infrastructure to monitor and optimize traffic flows.

Massive IoT Connectivity

Denser 5G connectivity will mean more vehicle sensors can simultaneously share data with transportation systems.

Edge Computing Support

Edge computing support reduces latency while allowing some processing directly in vehicles rather than the cloud.

Expanded V2X Communication

5G also enables ubiquitous vehicle-to-everything (V2X) communication between cars, infrastructure, networks, devices, and pedestrians over wider areas.

AI and Autonomous Driving

AI-based driver assistance and future self-driving systems will rely heavily on 5G's high speed, low latency, and reliable connectivity.


5G is essential for unlocking the full potential of connected, intelligent mobility ecosystems, with smarter vehicles, roads, and infrastructure working in concert to transform transportation safety and efficiency.

How will 5G impact the automotive industry?

5G is expected to impact the automotive industry in various ways including:

  • Enable fully autonomous vehicles -The low latency and high reliability of 5G will make autonomous driving viable and safe. It will allow self-driving cars to communicate and coordinate in real time.
  • V2X communication -5G will enable expanded vehicle-to-everything communication between vehicles, infrastructure, cloud services, and devices. This will improve safety, and traffic efficiency, and enable new intelligent transport services.
  • Faster over-the-air updates - Large software updates will download faster over 5G, enabling vehicles to add new capabilities on the fly through over-the-air updates.
  • Enhanced infotainment - High-speed 5G will enable immersive entertainment options like streaming HD/AR/VR media and gameplay inside vehicles.
  • Predictive maintenance - Real-time vehicle data shared over 5G will enable predictive maintenance and earlier identification of potential defects using AI.
  • Expanded sensor capabilities -With 5G, vehicles can stream data from many more sensors to cloud analytics platforms, enabling more intelligent vehicles.
  • Supply chain efficiencies - 5G can enable smarter logistics, asset tracking, and supply chain coordination as components are built, shipped, and delivered.
  • New business models and services - Continuous 5G connectivity allows automakers to move to service-based business models and offer novel in-car services.

How will 5G impact smart cities and intelligent transportation systems?

The arrival of 5G networks will be a game-changer for smart cities and intelligent transportation. 

With 5G, cities will be able to deploy massive sensor networks, providing real-time data to optimize traffic flows, manage infrastructure, improve emergency response times, and allocate resources more efficiently. 

Autonomous public transport and delivery vehicles relying on 5G will make mobility safer, greener, and more accessible. 

Vehicles will become nodes

Vehicles will become nodes in smart city data networks, sharing telemetry and sensor data through 5G to generate rich mobility mappings and updates. This will allow cities to harness AI and analytics to coordinate traffic signals, redirect vehicles, and model patterns optimally. 

Municipal infrastructure like streetlights and parking meters can be efficiently interconnected and automated using 5G.

In addition

5G enables capabilities like mixed reality urban modeling and simulation to optimize development and planning. 

The hyper-connectivity of 5G will accelerate the adoption of citizen-centric smart city services, digital twins, and intelligent transportation, driving urban evolution.

What challenges need to be addressed for 5G in connected cars and smart infrastructure?

Here are some of the main challenges that need to be addressed with 5G for connected cars and smart infrastructure:

  • Infrastructure build-out -Extensive infrastructure is required to deploy the small cells and fiber backhaul needed for 5G networks. Significant investment and construction is needed.
  • Standardization - Common standards are still being finalized so different vehicles, roadways, and traffic systems can communicate. Standardization is critical for interoperability.
  • Security - With so many interconnected systems, security is paramount. Cars and infrastructure will need built-in cybersecurity and regular updates.
  • Privacy -Protocols need to ensure privacy as vehicles and devices share increasing amounts of data. Transparency and consent around data sharing is important.
  • Latency -Guaranteeing ultra-low latency for safety applications like collision avoidance and alerts is essential but difficult.
  • Rural access - Major gaps in connectivity remain in rural areas, along highways, etc. Seamless 5G access is still lacking.
  • Cost - Despite falling costs, 5G deployment requires a huge investment. Managing costs to maximize access will be challenging.
  • Power consumption -Connected systems and sensors will need efficient power systems and batteries, especially for electric vehicles.

Overcoming these challenges will require coordinated efforts between regulators, government agencies, automakers, technology providers, and telecom companies to maximize the benefits of 5G for intelligent mobility and smart infrastructure.


5G is a game-changer for connected cars and smart infrastructure. It offers real-time communication for safer autonomous driving, over-the-air updates, and smarter traffic management. 

It also benefits smart cities with sensor networks and mixed-reality modeling. Yet, challenges like infrastructure, standards, security, and privacy need addressing. 

5G holds immense potential for transforming mobility and infrastructure.

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