The Federal Communications Commission has allocated 7.5 GHz of spectrum for unlicensed commercial UWB communication systems, and the IEEE 802.15.3a standards body [2] has developed a modification of the Saleh-Valenzuela model [1] as the accepted channel model for UWB investigations[3]. Although the model is straightforward to simulate, it is difficult to analyze.

My research is aimed at providing a deeper theoretical understanding of the IEEE model (and other variations) as well as new analysis and design tools that will enable the development of systems that fully exploit the diversity and capacity of UWB channels.

A Brief History of Shot Noise

References

1. A. A. M. Saleh and R. Valenzuela, "A statistical model for indoor multipath propagation," IEEE J. Select. Areas Commun., vol. SAC-5, no. 2, pp. 128-137, Feb. 1987.
2. J. Foerster, Ed., ``Channel modeling sub-committee report final,'' IEEE, Document IEEE P802.15-02/490r1-SG3a, 2003. Available as part of the 16 MB .zip file.
3. A. Batra, J. Balakrishnan, G. R. Aiello, J. R. Foerster, and A. Dabak, "Design of a multiband OFDM system for realistic UWB channel environments," IEEE Trans. Microwave Theory Tech., vol. 52, no. 9, pp. 2123-2138, Sept. 2004.
4. A. Kailas and J. A. Gubner, "Performance measures of a UWB multiple-access system: DS/CDMA versus TH/PPM," Proceedings of the Forty-Second Annual Allerton Conference on Communication, Control, and Computing, University of Illinois, Urbana, IL, Sept. 29-Oct. 1, 2004, pp. 1901-1907.
5. K. Hao and J. A. Gubner, "Performance measures and statistical quantities of rake receivers using maximal-ratio combining on the IEEE 802.15.3a UWB channel model," Unpublished, 2005.
6. J. A. Gubner and K. Hao, "The IEEE 802.15.3a UWB channel model as a two-dimensional augmented cluster process," Unpublished, 2006.
7. K. Hao and J. A. Gubner, "Linear estimation of signals transmitted over the IEEE 802.15.3a UWB channel," Unpublished, 2006.