Can terahertz frequencies push India closer to 6G? An indigenous wireless testbed has demonstrated data transmission at 6.39 Gbps.
Researchers at IIT Madras have demonstrated 6.39 Gbps wireless data transmission using the Bharat 6G THz Testbed, in collaboration with the Society for Applied Microwave Electronics Engineering & Research (SAMEER). Supported by the Telecom Technology Development Fund (TTDF), the work focuses on terahertz communication for future 6G networks.
The demonstration is relevant to applications that require high data rates and low latency, including extended reality, advanced robotics, autonomous systems, and highly connected infrastructure. Higher-frequency wireless links could provide access to larger bandwidths, allowing future networks to move more data while supporting communication-intensive applications.
The work also provides an indigenous environment for developing and testing high-frequency wireless technologies in India. Such testbeds can help researchers validate communication systems before potential integration into larger networks and contribute to domestic expertise in technologies being considered for future telecom standards.
The Bharat 6G THz Testbed operates in the terahertz spectrum, broadly covering frequencies from 300 GHz to 10 THz. These frequencies sit between millimetre-wave and infrared bands and offer access to spectrum that can support wider wireless channels than many existing communication bands.
The demonstrated link achieved a data transmission rate of 6.39 Gbps, equivalent to 6.39 billion bits per second. The technology is being evaluated as part of India’s broader Bharat 6G programme, which is aimed at developing domestic capabilities for next-generation communication systems.
Terahertz communication could complement other 6G technologies by providing high-capacity wireless links for specific use cases where conventional cellular frequencies may not offer sufficient bandwidth. The research therefore contributes to the development and validation of high-frequency wireless technologies that could support future 6G networks.
