The paper proposes a new formulation of a minimum mean square error pre-distortion scheme for multiple-input single-output impulsive ultra-wideband in multiple user environment. For the performance evaluation, scenarios CM1 and CM3 of the IEEE 802.15.3a channel model are considered. Results show that such a scheme has a good trade-off between intersymbol interference and multiple access interference reduction and signal-to-noise ratio preservation, performing better than time reversal and zero forcing pre-distortion schemes.
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Angélico, B.A., Jeszensky, P.J.E. & Abrão, T. MMSE Pre-distortion Scheme for Multiuser UWB. Wireless Pers Commun 70, 1307–1319 (2013). https://doi.org/10.1007/s11277-012-0748-6
- Time reversal