Satellite, Telecommunication

Unmet need
The field of wireless communications is increasingly focused on expanding high-speed connectivity to rural, atmospheric, and space environments. Robust wireless backhaul systems and satellite links are essential for bridging the digital divide and connecting remote base stations where laying fiber-optic cables is geographically or economically unfeasible. As global data consumption surges and satellite deployments multiply, there is a critical need to maximize data rates and spectral efficiency across these networks.
Despite this growing demand, current technologies struggle to deliver adequate capacity in line-of-sight (LoS) propagation environments. Traditional multi-antenna systems, which successfully boost data rates in urban areas by exploiting multiple independent signal paths, severely underperform in these conditions due to poor signal scattering and high channel correlation. Consequently, existing backhaul and satellite links face severe capacity bottlenecks. Attempting to resolve these limitations with alternative hardware solutions, such as reconfigurable intelligent surfaces or distributed antenna systems, introduces prohibitive costs and physical complexity. Furthermore, deploying extra hardware often triggers increased regulatory fees and expensive tower-leasing agreements, making conventional workarounds highly impractical.
Technology overview
Non-Orthogonal Spatial Multiplexing (NOSM) is a software-based solution designed to achieve spatial multiplexing gains in line-of-sight wireless environments with poor scattering. It operates by transmitting and receiving data streams, utilizing advanced signal processing techniques to minimize signal interference between transmitted data. The technology is frequency-independent across various radio frequency bands and scales data rates proportionally to the number of antennas. NOSM requires no additional equipment, bandwidth, or costly tower-leasing fees. It acts as a cost-effective software upgrade that nearly doubles throughput, demonstrating a 1.98x bit rate improvement in a standard 2x2 setup. Furthermore, NOSM uniquely leverages its extra data capacity to enhance network security, such as utilizing one stream as an encryption key for another.
Market applications
- Terrestrial wireless backhaul links
- Satellite to ground communications
- Satellite to aircraft links
- Direct to device satellite links
- Wi-Fi network extension
Competitive advantage
- Reduces operational and regulatory costs by avoiding extra hardware tower leasing and spectrum fees.
- Significantly increases data throughput and nearly doubles bit rates in standard 2x2 MIMO systems and scales proportionally with the number of antennas without requiring extra bandwidth.
- Operates without additional hardware and integrates directly into existing radio infrastructure
- Improves performance in Line-of-Sight (LoS) environments where traditional MIMO struggles
- Enables deployment across multiple radiofrequencies.
Business opportunity
- Partnership for R&D collaboration and/or licensing

Prof. Gunes Karabulut Kurt
Full professor
Department of Electrical Engineering
Expertise
Roger Miller
Technology Transfer Office