1. Wireless Networks Division, National Institute of Standards and Technology, Gaithersburg, Maryland, U.S.A., --- Select a Country ---
2. Department of Electrical & Computer Engineering, University of Washington, Seattle, Washington, U.S.A., --- Select a Country ---
3. National Institute of Standards and Technology, Gaithersburg, Maryland, U.S.A., --- Select a Country ---
4. Prometheus Computing LLC, Sylva, North Carolina, U.S.A., --- Select a Country ---