Update and Plan for Spring 2011

Yi Guo, Zheng Wang, Wenlin Zhang

RavenShield Weekly Meeting Jan. 24, 2011

Agenda

• Personnel changes• Feedback from the IPR meeting and discussion of

ideas• Plan for Spring 2011

Centralized vs. Distributed Spectrum Sensing

• Centralized Scheme:– Fusion center (common

receiver) – Reporting channels

• Distributed Scheme:– Local information

exchange without the central station

Potential Testbed Development(In collaboration with Profs. Yingying Chen and Yu-Dong Yao)

Mornitoring and Management Server

LAN

User End

Internet

WiMax NetworkTV Band

3G Network

Secondary User (USRP)

About 10 - 20 USRPs are needed (currently 4 available).

Using Agilent signal generator to simulate different kinds of signal band, e.g., TV band, 3G, etc.

Potential Testbed Development - Software Architecture

User EndMonitoring & Management System

Mobility Control Component

Spectrum Sensing Component

Application-Specific Component

GNU Radio Interface

Consensus Sensing Block

Security Block

Resource Mangement Block

…

Internet

Mobile Driver

Robotsinterface

VechiclesInterface

… USRP Interface

– Mobility Control Component: Controlling the mobility of the primary or secondary users in the system;

– Spectrum Sensing Component: Sensing the spectrum usage for different kinds of wireless networks;

– Application-specific Component: Applying different functionality in the system.

Next Step

• Theoretical proof of the proposed distributed consensus-based spectrum sensing algorithm

• Extensive simulations• Performance comparisons• A comprehensive report and a GLOBECOM paper

(deadline March 1, 2011)

• Laboratory testbed development