Sequential interference cancellation chip for multi-user
This technology is a smarter way for wireless receivers to untangle multiple signals that have been transmitted on top of each other at the same time. It works by identifying the strongest incoming signal first, decoding it, then mathematically removing it from the combined signal before moving on to the next strongest — repeating this process until every signal is cleanly decoded. Critically, it also corrects for real-world distortions like amplitude drift, phase shifts, and frequency offsets at each step, which improves overall decoding accuracy. This iterative 'peel-and-repeat' approach allows more users to share the same wireless spectrum without mutual interference degrading their connections.
What you could build
A baseband signal processing module for multi-user wireless receivers — applicable in cellular base stations, satellite ground stations, or software-defined radios — that could be licensed to chipset makers or integrated into telecom infrastructure equipment.
Who in Virginia should care
Defense and intelligence contractors in Northern Virginia (e.g., SIGINT and communications systems integrators) as well as telecom infrastructure suppliers operating near major government clients.
Readiness: Concept
Concept — described but not yet demonstrated. Lab validated — supported by experimental results in the patent. Prototype likely — the text describes a built, working embodiment.
Readiness is inferred from the patent text, not from a lab visit.
The record
- Inventors
- Minh A. Nguyen, Amir I. Zaghloul
- Granted
- September 8, 2009
- Status
- Granted patent
- Patent number
- 7587191
Ready to talk?
Virginia Tech Intellectual Properties handles licensing for this technology.
Prosim summaries are generated from public patent text and are not legal advice.