Co-operation with Constraints

17.4.2015 09:00


Infotech Oulu Lecture Series

Lecturer: Dr. Shirish Nagaraj, Nokia, Arlington Heights, IL, USA

Date: Friday, April 17, 2015
Time: 9:00-10:00
Room: TS128


In this talk, we present approaches for multi-cell co-operation in wireless networks under architectural constraints on inter-connect topology. Constraints in the form of bandwidth and latency of information exchanges will be addressed. This work has applications to evolving cellular network topologies, including Cloud/Centralized-RAN, and distributed small-cell & HetNet deployments. Motivated by these constraints, we pose a problem of co-operative network utility maximization subject to inter-connect constraints. We show that the solution leads to a distributed iterative price-based scheme for antenna and aperture selection in the case of uplink co-operation. The utility of such methods will be showcased via realistic network simulations as well as software and hardware demonstrations.


Shirish Nagaraj is a researcher and manager at Nokia Networks research in Arlington Heights, IL. He received his Ph.D. and M.S. from the University of Notre Dame and his B.Tech. from the Indian Institute of Technology Bombay, all in Electrical Engineering. He is a recipient of the “Best Researcher Award” from the University of Notre Dame in 2000, and a “Best Paper Award” from the IEEE WCNC in 2012. Prior to Nokia, he was with Bell Labs-Alcatel Lucent from 2000-2007, and with Motorola Networks from 2007-2011. His research interests include statistical signal processing, machine learning, resource optimization and multi-antenna communications networks.

More information: Markku Juntti

Last updated: 30.3.2015