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Wireless Communications Research at West Virginia University

Wireless Communications Research at West Virginia University. March 31, 2006 Matthew Valenti West Virginia University Morgantown, WV 26506-6109 mvalenti@wvu.edu. Wireless is Big Business…. Over 1 Billion wireless phone subscribers worldwide. 205,829,280 in the US.

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Wireless Communications Research at West Virginia University

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  1. Wireless Communications Researchat West Virginia University March 31, 2006 Matthew Valenti West Virginia University Morgantown, WV 26506-6109 mvalenti@wvu.edu

  2. Wireless is Big Business… • Over 1 Billion wireless phone subscribers worldwide. • 205,829,280 in the US. • Nearly 200,000 cellular base stations (towers) in US • Revenues of over $100 Billion per year. Wireless at WVU

  3. So Is WiFi… Wireless at WVU

  4. Simulation of Communication Systems • Before any new system is fielded, it must be extensively tested. • Testing of proof-of-concept systems starts with computer simulation. • Example: Bit-level simulation of the 3-G wireless system UMTS/WCDMA. Wireless at WVU

  5. Free Software for Simulating Communication Systems • Commercial grade software is expensive. • Often, you cannot inspect the source code. • At WVU, we have developed a free software library for simulating communication systems. • Runs in matlab. • Simulation can be at a bit or packet level. • Can simulate aspects of 3G wireless, 802.11a/g, Wimax, satellite digital TV, etc. • To download, • http://www.csee.wvu.edu/~mvalenti -> Research -> Turbo Codes • As a WVU graduate student, you have the ability to contribute new code to the project. Wireless at WVU

  6. Simulation Acceleration I:Grid Computing • The simulations can take a long time to run. • On PC, can achieve simulated data rate of about 10 kbps. • A simulation might require as many as 300 Mbits to be simulated. • Would take over 8 hours at that rate. • One solution is to use grid computing. • Presentation on this to be given on April 12th at 2:30 PM at WVU’s Computing & Technology Symposium (Monongahela Room, Mountainlair) Wireless at WVU

  7. Simulation Acceleration II:Hardware Acceleration • The most computationally intensive part is (FEC) forward error correction decoding. • FEC decoding can be implemented in hardware as on an FPGA board. • Throughput of 10 Mbps. Wireless at WVU

  8. Software Radios • If the simulation software is accurate (and honest) enough, it can be used to actually implement the communication radios. • All that is needed is a high speed A/D and D/A converters. Wireless at WVU

  9. Ad Hoc Networks • Thinking beyond mere point-to-point networks… Source Destination Wireless at WVU

  10. The WVU Wireless Group • Wireless Communications Research Group • Matthew Valenti • Daryl Reynolds • Brian Woerner • Web: • htttp:/www.csee.wvu.edu/wcrl Wireless at WVU

  11. Courses • Stochastic Systems Theory (EE 513) • Core (required) course. • Probability, random variables, and random signals. • Graduate Electives: • EE 561: Communication Theory. • EE 562: Wireless Communication Systems. • EE 568: Information Theory. • EE 591h: Coding Theory. • EE 591k: Detection and Estimation. • Undergraduate Electives: • EE 461: Intro. to Communication Systems. • EE 463: DSP Fundamentals. • CPE 493g/462: Wireless Networking. Wireless at WVU

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