DIMSUMnet: Dynamic Intelligent Management of Spectrum for Ubiquitous Mobile networks

Award Number: CNS 0435348


Current spectrum allocation rules set by Federal Communications Commission (FCC) have lead to an artificial spectrum scarcity, even though large swaths of spectrum remains underutilized. The new paradigm of Dynamic Spectrum Access shows promise of alleviating this and ushering in new forms of networks.  However, most current research on this topic has focused on highly opportunistic, uncoordinated spectrum access for peer-to-peer ad-hoc communications.

This research takes a pragmatic viewpoint that coordinated dynamic spectrum access techniques to allocate spectrum on an on-demand basis can be quite beneficial in cellular and Fixed Wireless Access (FWA) networks.  This proposal addresses the following research problems in this context: (1) Develop a comprehensive understanding of spatio-temporal spectrum usage in existing cellular networks using extensive spectrum measurements in the urban and rural settings. (2) Develop models for spectral utilization and quantify improvements in spectral access efficiency and utilization.  (3) Design new architectures and associated signaling and control protocols to realize coordinated spectrum access. (4) Design and implement new algorithms and policies for allocation, sharing and trading of spectrum. (5) Design and implementation of spatial data representation structures, scalable spectrum servers, and spectrum allocation sharing/trading policies that are required to support efficient dynamic spectrum access.

The main results of this research will be creation of spectrum measurement datasets, spectrum utilization models and new architectures, protocols, spectrum allocation algorithms, policies and services for networks based on coordinated spectrum access. In summary, this research will result in fundamental contributions to the science of coordinated spectrum access.

Maintained by
Milind M. Buddhikot