Research Activities and ongoing work February 9th 2011 Mauro Biagi

Outline Introduction Goals Cognitive Radio UltraWide Band Radio (UWB) Visible Light Communications (VLC) Power Line Communications (PLC) Acoustic Underwater Communications (AUC) Information Theory and Secrecy Resource Management for Heterogeneous Networks Biomedical Engineering

Introduction “Contamination” is not always bad! “Contamination” may help especially if human (students, Ph.D. Students and professors) and/or between different disciplines From this, the idea of a medium-short course of seminars

Goals Seminars are a good instrument for scientific cooperation, testing speakers capability and help the ability to acquire criticism about the own work and the contributions of colleagues Ready to Start Just Started Ongoing

Cognitive Radio The point in which wireless personal digital assistants (PDAs) and the related networks are sufficiently computationally intelligent about radio resources and related computer-to-computer communications to detect user communications needs as a function of use context, and to provide radio resources and wireless services most appropriate to those needs (J.Mitola III)

Cognitive Radio Main activities in this framework are Spectrum Sensing Cooperative detection Spectrum Management Spectrum Sharing Spectrum Mobility

Cognitive Radio Interest in: Spectrum Sensing When access occurs Where Wigner-Ville Transform of a mono-dim. signal Image Processing (Edge Detection) Wigner-Ville Transform of a mono-dim. signal Image Processing (Edge Detection)

Cognitive Radio Interest in: Spectrum Management Primary users have a higher priority with respect to secondary ones

UltraWide Band (UWB) Main activities in this framework are Symbol Synchronization Multiple-Access

UltraWide Band (UWB) Interest in: Symbol Synchronization Training sequences can help synchronization while turbo-scheme can reduce the number of pulses needed for Sync.

UltraWide Band (UWB) Interest in: Multiple-Access The access to the medium, UWB, is based on the pulse shape that takes care of masks, synchro and rate constraints

Visible Light Comm’s (VLC) Main activities in this framework are TX/RX Techniques Channel modeling Device design Cooperation with Boston University

Visible Light Comm’s (VLC) TX/RX Techinques

Visible Light Comm’s (VLC) TX/RX Techinques: Transmission rate vs. Reliability A “New” RAKE with delay spread bounded to help rate

Power Line Comm’s (PLC) Main activities in this framework are Interference Rejection Spectrum Access Routing MIMO Schemes Cooperation with University of British Columbia

Power Line Comm’s (PLC) Interest in Interference Rejection Delay Spread Cross-Talk Impulse Noise Delay Spread Cross-Talk Impulse Noise

Power Line Comm’s (PLC) Interest in Spectrum Access Conventional Approaches are not PLC-based Conventional Approaches are not PLC-based

Power Line Comm’s (PLC) Interest in Routing

Power Line Comm’s (PLC) Interest in MIMO Schemes Spatial Multiplexing Interference mitigation Power consumption

Acoustic Underwater Comm’s Main activities in this framework are Channel Equalization and Coding Interference Suppression Spectrum Access Cooperation with Rutgers University

Acoustic Underwater Comm’s Interest in: Channel Equalization and Coding

Acoustic Underwater Comm’s Interest in: Interference Suppression

Acoustic Underwater Comm’s Interest in: Multiple Access

Inform. Theory and Secrecy Main activities in this framework are To combat Eavesdropping To avoid malicious access

Inform. Theory and Secrecy Interest in To combat Eavesdropping In MIMO systems power allocation can aid secrecy In MIMO systems power allocation can aid secrecy

Resource management in HN Main activities in this framework are Vertical Handover Interoperability

Biomedical Engineering Main activities in this framework are Children Sleep Apnea Analysis of arm’s movement

Biomedical Engineering Interest in: Children Sleep Apnea Cooperation with South Bank University (London)

Biomedical Engineering Interest in: Analysis of arm’s movement

Conclusions This streak of meetings is an experiment! Next meeting March 1-st (12p.m. with Food!) Dr.V.Polli: An Image Processing Approach to Distributed Access for Multiantenna Cognitive Radios