The Path to 5G in Sri Lanka:Challenges and Opportunities

By Dr Samiru Gayan 

Sri Lanka is on the brink of a new technological era as the world races towards adopting fifth-generation (5G) mobile network technology. Promising a choice of faster internet speeds, minimal latency, and the capacity to connect a multitude of devices simultaneously, 5G holds the potential to transform the nation’s economy, communication infrastructure, and daily life. However, like many developing countries, Sri Lanka faces unique challenges in implementing this technology.

The Potential of 5G 

5G technology is not just about faster internet speeds; it represents a revolutionary leap in connectivity that can catalyse economic growth and social inclusion. In simple terms, 5G provides ultra-fast data speeds of up to 20 gigabits per second which is about 20 times faster than 4G Long-Term Evolution (LTE) and dramatically lowers latency to just a few milliseconds. This means instantaneous responses between devices, which is crucial for applications like autonomous vehicles, remote healthcare, and real-time data processing in smart cities.

The real strength of 5G lies in its ability to support a wide range of applications across different sectors through three key technological pillars: Ultra-Reliable Low-Latency Communication (URLLC), enhanced Mobile Broadband (eMBB), and massive Machine-Type Communication (mMTC). URLLC enables extremely low-latency and highly reliable connections, ideal for mission-critical applications like remote surgery or autonomous vehicles. eMBB provides high-speed data rates, supporting use cases like ultra-HD video streaming, virtual reality (VR), and faster mobile browsing. Meanwhile, mMTC allows connectivity for a massive number of devices, making large-scale Internet of Things (IoT) applications like smart cities and precision agriculture possible.

One of the most powerful features of 5G is its ability to support all three pillars URLLC, eMBB, and mMTC, simultaneously within a single network. This means, for example, that a smart agriculture solution could combine real-time control of automated machinery (using URLLC), high-definition drone video monitoring (using eMBB), and a vast network of soil or weather sensors (using mMTC), all operating seamlessly over the same 5G infrastructure. This flexibility makes 5G not just an upgrade to mobile connectivity, but a foundation for digital transformation across industries.

Opportunities for Sri Lanka

For Sri Lanka, the rollout of 5G opens a vital pathway to modernise and digitalise industries and spark innovation across multiple sectors. Agriculture, in particular, stands to benefit immensely from 5G-enabled precision farming technologies that rely on real-time data and rapid response. Beyond just monitoring soil moisture or weather patterns, 5G can support advanced applications that require instant intervention. Imagine automated tractors or harvesters in paddy fields operating with centimetre-level accuracy, or drones flying over farmlands, carrying out tasks like seeding, targeted spraying of fertilisers, or real-time surveillance of crop health. These drones can instantly transmit high-resolution images and sensor data for early detection of pests or diseases, enabling faster decision-making and reducing crop losses. With such technologies, farmers are not only able to use resources like water and fertilisers more efficiently but also increase yields and reduce operational costs paving the way for a more sustainable and technology-driven agricultural sector in Sri Lanka. 

Augmented reality (AR)

The tourism sector, a vital pillar of Sri Lanka’s economy, can also see substantial benefits. With augmented reality (AR) powered by 5G, tourists visiting historical sites like Anuradhapura, Sigiriya or Polonnaruwa could receive virtual guides and interactive content on their smartphones, enriching their experience. Moreover, 5G-powered language translation apps can help overcome communication barriers, making Sri Lanka even more attractive to international visitors.

In healthcare, 5G can enable telemedicine and remote diagnostics, improving access to quality healthcare in rural areas. For instance, a patient in Hambantota can consult a specialist in Colombo via a high-quality video call, while real-time monitoring devices track vital signs and send data directly to the doctor. This can save time and reduce the burden on central hospitals.

5G has the potential to revolutionise education in Sri Lanka. With its high-speed connectivity and ultra-low latency, 5G can support virtual reality (VR) and augmented reality (AR) applications in classrooms, turning traditional lessons into engaging, hands-on experiences. Imagine students in a rural school that does not have suitable physical lab facilities exploring a 3D model of the solar system through VR headsets or conducting virtual science experiments without needing a physical lab. Real-time video conferencing with minimal lag can enhance distance learning, allowing students learn from expert educators from around the world.

The Economic Boost

According to estimates from the GSMA, Mid-Band 5G could deliver $610B GDP growth in 2030 and developing nations like Sri Lanka stand to benefit significantly. By investing in 5G infrastructure, Sri Lanka can attract foreign investments and foster innovation, creating new jobs and boosting the economy. A well-developed 5G network can enable smart factories where automation and robotics enhance productivity, similar to what has been achieved in countries like South Korea and China. In such environments, machinery is interconnected, maintenance is predicted through data analytics, and productivity increases manifold.

Challenges on the Road to 5G

Despite its immense potential, rolling out 5G in Sri Lanka is not without challenges. The primary hurdle is the high cost of infrastructure deployment. Unlike 4G, which uses fewer but larger towers, 5G requires a dense network of smaller cell towers to maintain coverage and speed. Building and maintaining this network is expensive, and the cost could deter private investors, especially in rural and less profitable areas. Furthermore, the requirement for advanced technologies like massive multiple-input-multiple-output (mMIMO) systems adds to the financial burden.

Moreover, the affordability of 5G-enabled devices is another concern. While premium smartphones from brands like Apple and Samsung already support 5G, the average Sri Lankan consumer may find them out of reach. Until affordable devices are available, widespread adoption will remain limited. Additionally, the technical expertise required to manage and maintain 5G networks may strain existing human resources within telecom companies.

Addressing the Digital Divide

One major risk of rapid 5G adoption is the potential to widen the digital divide between urban and rural areas. Urban centres like Colombo and Kandy may quickly become 5G-ready, but rural and remote regions could lag significantly behind. This disparity could exacerbate existing inequalities and leave rural communities further disconnected. To mitigate this risk, the government should develop policies that prioritise equitable access. 

Policy and Regulatory Framework

The successful implementation of 5G requires a robust policy and regulatory framework. Governments must ensure efficient spectrum management to avoid network congestion and maintain service quality. Spectrum auctions should be transparent and reasonably priced to encourage participation from multiple telecom operators. Countries like India and Bangladesh have successfully managed spectrum allocation by implementing flexible pricing structures, allowing wider participation from service providers.

Environmental Concerns

The environmental impact of deploying thousands of new cell towers should not be overlooked. Energy-efficient technologies and renewable power sources can help reduce the carbon footprint associated with 5G infrastructure. Sri Lanka can also draw inspiration from countries like Sweden and Denmark, which have adopted green telecom practices by integrating solar panels and wind power with base stations.

Building Sri Lanka’s Digital Future

The transition to 5G is not just a technological upgrade; it is an opportunity for Sri Lanka to rethink its digital strategy. Integrating 5G into national development plans can unlock new economic opportunities and improve living standards. However, achieving this vision requires strategic investment, robust policy frameworks, and a commitment to digital inclusivity.

Public-private partnerships can play a vital role in subsidising rural deployment, ensuring that the benefits of 5G reach all parts of the country. Embracing shared infrastructure models, such as neutral hosts and tower sharing, can also reduce duplication of infrastructure and lower operational costs for service providers. The adoption of Open Radio Access Networks (Open RAN) presents another strategic opportunity by reducing vendor lock-in and lowering capital expenditure (CAPEX) using interoperable, software-based solutions. Additionally, deploying a low band 5G spectrum, such as the 700 MHz band, can provide broader coverage with fewer towers, making it ideal for reaching remote regions with limited infrastructure. Private 5G networks, particularly for sectors like manufacturing, ports, and education, can further drive innovation while easing the burden on public networks. Together, these approaches can pave the way for a cost-effective and inclusive 5G rollout across Sri Lanka.

To truly capitalize on 5G, Sri Lanka needs a balanced approach that addresses both the technical challenges and social implications. With careful planning and a focus on inclusive growth, Sri Lanka can position itself as a leader in digital connectivity in South Asia, ensuring that the benefits of 5G reach every corner of the island.

The writer is a lecturer at the Department of Electronic and Telecommunication Engineering, University of Moratuwa, Sri Lanka and could be contacted at [email protected]