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| Experimental Results on Multiple-Input Single-Output (MISO) Time Reversal for UWB Systems in an Office Environment | |||
| Qiu,Robert | Tennessee Technological University | ||
| Zhou,Chenming | Tennessee Technological University | ||
| Guo,Nan | Tennessee Technological University | ||
| This paper experimentally investigates the scheme of time reversal (TR) combined with multiple-input single-output (MISO) antennas over ultra-wideband (UWB) channels. In particular, temporal and spatial focusing as well as array gain are studied based on an MISO (4*1) scheme in an office environment. The results confirm that the energy of UWB signals in an MISO scheme is more spatial-temporally focused than in a single-input single-output (SISO) scheme. As a result, a strong peak is observed in the equivalent channel impulse response. The magnitude of this peak grows linearly with the square root of the number of antenna elements at the transmitter. All the measurements and data processing are completed in the time domain. | |||
| Chenming Zhou (S’05) was born in Jiangxi, China, in 1979. He received the M.S. degree in optical science from Beijing University of Technology in 2003. He is currently a Ph.D. student in the Department of Electrical and Computer Engineering at Tennessee Technological University. His general research interests include radio propagation, UWB communications, and smart antennas. | |||