Measurement, Modeling, and Simulation

Directional Antennas

The Effective Directivity Antenna Model (EDAM) is a model of the realized signal directionality when directional antennas are used in environments with significant non-line-of-sight propagation components.

• Eric Anderson, Caleb Phillips, Douglas Sicker, Dirk Grunwald Modeling Environmental Effects on Directionality in Wireless Networks Mathematical and Computer Modeling., 2010. (BibTeX).
• Eric Anderson, Gary Yee, Caleb Phillips, Dirk Grunwald, Douglas Sicker The Impact of Directional Antenna Models on Simulation Accuracy WiOpt, 2009. (BibTeX) Talk slides.
• Eric Anderson, Caleb Phillips, Douglas Sicker, Dirk Grunwald Modeling Environmental Effects on Directionality in Wireless Networks WiNMee, 2009. (BibTeX) Talk slides.

See also the cu/rssi data set and cu/antenna data set at CRAWDAD.

Outdoor Networking Testbed

The CU Wide-Area Radio Testbed: A campus-wide testbed for experimental networking hardware and systems. The testbed consists of a permanent infrastructure for support, management, and data collection, and a long-term deployment of eight switched-beam phased array antenna nodes. WART has also hosted experimental equipment for fine-grained cellular localization and a GENI WiMAX base station, and may support GENI cognitive radio nodes.

• Eric Anderson, Gary Yee, Caleb Phillips, Michael Buettner, Douglas Sicker, Dirk Grunwald Challenges in Deploying Steerable Wireless Testbeds TridentCom, 2010. (BibTeX).
• Michael Buettner, Eric Anderson, Gary Yee, Dola Saha, Anmol Sheth, Douglas Sicker, Dirk Grunwald. A Phased Array Antenna Testbed for Evaluating Directionality in Wireless Networks MobiEval, 2007. (BibTeX).

Network-Scale Channel Emulation

The CMU Wireless Network Emulator is described on its own page here. Our group is interested in both the development of new models — especially for effects beyond the scale of individual links — and the design of hardware and software for applying those models in real time.

Papers on modeling for emulation:

• Xiaohui Wang, Eric Anderson, Peter Steenkiste, Fan Bai Improving the Accuracy of Environment-Specific Vehicular Channel Modeling WiNTECH, 2012. (BibTeX).