SDR: Spectrum Challenge

SDR: Spectrum Challenge Advisors: Prof. J. V. Krogmeier, Prof. D.J. Love Graduate Mentor: Joon Young Kim Members: Sutton Hathorn, Eric Rice, Muhammet Yazmyradov Department of Electrical and Computer Engineering (1)USRP2 Ports (3) USRP Ports (2) USRP2 Board (4) USRP Board Goal: Develop a radio protocol that most effectively transmit data through a communication channel in the presence of interfering signals. • All teams transmit on the same frequency, so the competition tries to find effective ways to transmit data over crowded frequencies. • Both a competitive and a cooperative competition occur • Competition is run on the ORBIT test bed • Teams are judged on the time taken to transmit a series of packets between two radios • Signal processing and systems. Some experience with communication systems and digital signal processing • ECE301, ECE438, and ECE 440 are all used in SDR technology • Good programming skills (Python, C++) and knowledge of Linux • Software-defined radio (SDR) is a radio communication system where components that have been typically implemented in hardware are instead implemented by means of software on a personal computer or embedded system. • This allows the radio to be instantly reconfigured via programming. • One physical radio can be used for a multitude of purposes DARPA SPECTRUM CHALLENGE SOFTWARE DEFINED RADIO GNU RADIO SOFTWARE DSSS/BPSK PROTOCOLS TESTING WITH THE USRP •The Universal Software Radio Peripheral is the hardware platform being used to test and implement the radio protocols developed with the GNU Radio software. •The USRP B200 has a bandwidth of 56MHz •It has a frequency range of 70MHz to 6GHz RELEVANT EXPERIENCE • An open source software development toolkit • Provides programming framework to perform signal processing for a variety of communication systems • GNU Radio Companion (GRC) provides a graphical flowchart based development environment -Direct Sequence spread spectrum is a technique that modulates the information signal and carrier with a spreading signal to use more bandwidth. -BPSK (Binary phase-shift keying) is a digital modulation technique that changes the phase of a carrier wave to convey information. -The resulting wider signal is more resistant to acute interference and the channel can be used by multiple users simultaneously

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Advisors : Prof. J. V. Krogmeier, Prof. D.J. Love Graduate Mentor: Joon Young Kim Members: Sutton Hathorn , Eric Rice, Muhammet Yazmyradov. SDR: Spectrum Challenge. Department of Electrical and Computer Engineering . Software Defined Radio. DARPA Spectrum Challenge. - PowerPoint PPT Presentation

Transcript of SDR: Spectrum Challenge

SDR: Spectrum ChallengeAdvisors: Prof. J. V. Krogmeier, Prof. D.J. LoveGraduate Mentor: Joon Young KimMembers: Sutton Hathorn, Eric Rice, Muhammet Yazmyradov

Department of Electrical and Computer Engineering

(1)USRP2 Ports(3) USRP Ports

(2) USRP2 Board(4) USRP Board

Goal: Develop a radio protocol that most effectively transmit data through a communication channel in the presence of interfering signals.

• All teams transmit on the same frequency, so the competition tries to find effective ways to transmit data over crowded frequencies.

• Both a competitive and a cooperative competition occur

• Competition is run on the ORBIT test bed

• Teams are judged on the time taken to transmit a series of packets between two radios

• Signal processing and systems. Some experience with communication systems and digital signal processing

• ECE301, ECE438, and ECE 440 are all used in SDR technology

• Good programming skills (Python, C++) and knowledge of Linux

• Software-defined radio (SDR) is a radio communication system where components that have been typically implemented in hardware are instead implemented by means of software on a personal computer or embedded system.

• This allows the radio to be instantly reconfigured via programming.

• One physical radio can be used for a multitude of purposes

DARPA SPECTRUM CHALLENGE

SOFTWARE DEFINED RADIO

GNU RADIO SOFTWARE

DSSS/BPSK PROTOCOLS

TESTING WITH THE USRP

• The Universal Software Radio Peripheral is the hardware platform being used to test and implement the radio protocols developed with the GNU Radio software.

• The USRP B200 has a bandwidth of 56MHz• It has a frequency range of 70MHz to 6GHz

RELEVANT EXPERIENCE

• An open source software development toolkit• Provides programming framework to perform

signal processing for a variety of communication systems

• GNU Radio Companion (GRC) provides a graphical flowchart based development environment

-Direct Sequence spread spectrum is a technique that modulates the information signal and carrier with a spreading signal to use more bandwidth.

-BPSK (Binary phase-shift keying)is a digital modulation technique that changes the phase of a carrier wave to convey information.

-The resulting wider signal is more resistant to acute interference and the channel can be used by multiple users simultaneously