naa a22 4500 510792405 CHVBK 20180411083324.0 cr unu---uuuuu 180411e20130801xx s 000 0 eng 10.1007/s11277-012-0976-9 doi (NATIONALLICENCE)springer-10.1007/s11277-012-0976-9 Smart UWB System Based on STC and TR Techniques for BER Performance Enhancement and Interference Rejection [Elektronische Daten] [Amira Zaki, Said El-Khamy, Ehab Badran] In this research, a novel smart UWB system is introduced. The proposed system is based on using an adaptive maximum ratio combining (MRC) Rake receiver. The proposed adaptive Rake receiver uses Genetic algorithm (GA) to adaptively select the delays of the fingers of the Rake receiver depending on the channel impulse response. It adaptively selects the delays that will allow the Rake receiver to capture most of the energy in the multipath components with minimum complexity. This adaptive Rake receiver is referred to as a GA Rake. The adaptive GA Rake is applied to a single-input single-output and space time coding (STC) multi-input single-output UWB systems. The performance of those systems using a GA Rake is compared to their performance when using a conventional MRC-Rake receiver and showed a great enhancement in performance with less receiver complexity. Also, in this paper, the smart UWB system using STC is modified by using the time reversal (TR) pre-coding technique. The modified system is referred to as a TR smart UWB system. This modification leads to more enhancements in performance and more reduction in receiver complexity over the smart UWB system. Moreover, this paper also shows the ability a TR smart UWB system in combating interference from other UWB systems. Springer Science+Business Media New York, 2012 UWB nationallicence STC nationallicence GA nationallicence Rake receiver nationallicence MRC nationallicence TR nationallicence Zaki Amira Department of Electronics and Communication Engineering, Arab Academy for Science and Technology, Alexandria, Egypt aut El-Khamy Said Department of Electrical Engineering, Faculty of Engineering, Alexandria University, Alexandria, Egypt aut Badran Ehab Department of Electronics and Communication Engineering, Arab Academy for Science and Technology, Alexandria, Egypt aut Wireless Personal Communications Springer US; http://www.springer-ny.com 71/4(2013-08-01), 2877-2894 0929-6212 71:4<2877 2013 71 11277 https://doi.org/10.1007/s11277-012-0976-9 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11277-012-0976-9 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Zaki Amira Department of Electronics and Communication Engineering, Arab Academy for Science and Technology, Alexandria, Egypt aut NATIONALLICENCE 700 1- El-Khamy Said Department of Electrical Engineering, Faculty of Engineering, Alexandria University, Alexandria, Egypt aut NATIONALLICENCE 700 1- Badran Ehab Department of Electronics and Communication Engineering, Arab Academy for Science and Technology, Alexandria, Egypt aut NATIONALLICENCE 773 0- Wireless Personal Communications Springer US; http://www.springer-ny.com 71/4(2013-08-01), 2877-2894 0929-6212 71:4<2877 2013 71 11277 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer