Research Activities and ongoing work

February 9th 2011Mauro 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 RadioInterest in: Spectrum Sensing When access occurs

Where

Wigner-Ville Transform of a mono-dim. signal

Image Processing (Edge Detection)

Cognitive RadioInterest in: Spectrum Management

Primary users have a higher prioritywith 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 synchronizationwhile 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

Power Line Comm’s (PLC)

Interest in Spectrum Access

Conventional Approaches are notPLC-based

Power Line Comm’s (PLC)

Interest in Routing

Power Line Comm’s (PLC)

Interest in MIMO Schemes

Spatial MultiplexingInterference 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

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