Content Delivery In Ad-Hoc Wireless Networks

TEAM Adviser : Dr. Lei Ying Research Assistant: Ming Ouyang Team Members:  Prashanth Yanamandra  Wyatt Brenneman  Taylor McKechnie Client: ECpE Department Iowa State University Ames, IA, USA

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Project Description Wireless connectivity has become popular in our everyday life.  Technologies implementing Ad-hoc networks like Wi-Fi, Bluetooth and Zigbee are some examples. In this project we will be developing content delivery protocols for ad hoc wireless networks. Our team will be responsible to design and implement protocol-stacks (from physical layer to application layer) on the software define radio platform including GNU radio and USRP. Software define radio significantly lowers the barrier of wireless system design by moving the design from hardware to software.

Project Description USRP is a general purpose RF hardware which provides a low-cost, readily but versatile radio functionality. GNU Radio is an open-source software development toolkit which enables a variety of signal processing on the data collected by the USRP hardware. Using the C++ code and/or the related Python script we composed, we will define the operations of each layer and see how a wireless system works

Functional Requirements Video Streaming at 10 fps for a 320 * 240 screen. Number of users: Up to 10 simultaneously streams Maximum Bandwidth - 8MHz for USRP and 20 MHz for USRP2 Broadcast Range ft indoors

Non-Functional Requirements Indoor placement of sensors and USRP devices Energy consumption of system Dimensions of USRPs and sensors USRP dimensions: 8.25’’ x 6.5” x 2”

Cost Estimates PRODUCTNUMBER OF UNITS COST/UNITTOTAL USRP (Only Kit)2$ 700$ 1,400 USRP2 (Only Kit)3$ 1400$ 4,200 Accessories (Daughter Board, Antennas) 5$ 310$ 1,550 LAPTOPS5$800$4,000 SENSORS25-50$ $ 200$ $ 10,000 SD Cards & Card Readers 3$ 20$ 60 WORK HRS.600$20/Hour$12,000 TOTAL$ $ 33210

Assumptions Minimum data rate at all time Minimum user access Users are within the range of sensors Indoor network Laptop and USRP in same location

Project Milestones March 3, 2010: Project plan is due March 26, 2010: Communication between USRPs April 16, 201o: Communication between sensors and USRPs April 26, 2010: Design Document is due Early May 2010: Committee review September 3, 2010: Room to Room Communication September 24, 2010: Initial phase of Testing October 2010: Test-Break-Fix November/ December 2010: Final Testing and Documentation

Risks Mitigation Sensor failures Bad data transmission Device Failure Easily available sensors to replace Device and sensor overlap Risks and Mitigation