Cellular networks are becoming denser with the deployment of femto, pico, metro and micro cells. However, spectrum is still scarce and hence all of these deployments have spectrum reuse factors close to one. In other words, neighboring base stations are operating on the same or overlapping pieces of spectrum. Naturally interference results, which if not properly managed, can significantly harm network performance and eliminate the benefits of moving to smaller cells.
To cope, cellular network architectures have to change. Specifically, instead of using the standard interference avoidance approach for cell planning and operation, they need to change to an architecture which exploits the inevitable interference that results from dense deployments and high spectrum reuse factors. This project deals with designing smart interference management techniques for future wireless networks that will be highly dense and heterogeneous, and solving practical challenges that stand in the way of realizing such systems in real world.
Rakesh Misra (PhD Candidate)
Sachin Katti (Faculty)