naa a22 4500 510795471 CHVBK 20180411083335.0 cr unu---uuuuu 180411e20130101xx s 000 0 eng 10.1007/s11277-011-0437-x doi (NATIONALLICENCE)springer-10.1007/s11277-011-0437-x Non-Coherent Fourth-Order Detector for Impulse Radio Ultra Wideband Systems: Empirical Evaluation Using Channel Measurements [Elektronische Daten] [Muhammad Khan, Benny Sällberg, Jörgen Nordberg, Fredrik Tufvesson, Ingvar Claesson] Low-complex and low-power non-coherent energy detectors (EDs) are interesting for low data rate impulse radio (IR) ultra wideband (UWB) systems, but suffer from a loss in performance compared to coherent receivers. The performance of an ED also strongly depends on the integration interval (window size) of the integrator and the window position. This paper presents a non-coherent fourth-order detector (FD) which can discriminate between Gaussian noise signals and non-Gaussian IR-UWB signals by directly estimating the fourth-order moment of the received signal. The performance of the detectors is evaluated using realistic channels measured in a corridor, an office and a laboratory environment. The results show that bit-error-rate (BER) performance of the proposed FD receiver is slightly better than the ED in low signal-to-noise ratio (SNR) region and its performance improves as the SNR increases. In addition, BER of the FD receiver is less sensitive to overestimation of the integration interval making it relatively robust to variations of the channel delay spread. Finally, a criteria for the selection of integration time of the proposed detector is suggested. Springer Science+Business Media, LLC., 2011 UWB communications nationallicence Non-coherent detection nationallicence Higher-order moments nationallicence Channel measurements nationallicence Khan Muhammad Department of Electrical Engineering, School of Engineering, Blekinge Institute of Technology, SE371 75, Karlskrona, Sweden aut Sällberg Benny Department of Electrical Engineering, School of Engineering, Blekinge Institute of Technology, SE371 75, Karlskrona, Sweden aut Nordberg Jörgen Department of Electrical Engineering, School of Engineering, Blekinge Institute of Technology, SE371 75, Karlskrona, Sweden aut Tufvesson Fredrik Department of Electrical and Information Technology, Lund University, SE221 00, Lund, Sweden aut Claesson Ingvar Department of Electrical Engineering, School of Engineering, Blekinge Institute of Technology, SE371 75, Karlskrona, Sweden aut Wireless Personal Communications Springer US; http://www.springer-ny.com 68/1(2013-01-01), 27-46 0929-6212 68:1<27 2013 68 11277 https://doi.org/10.1007/s11277-011-0437-x text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11277-011-0437-x text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Khan Muhammad Department of Electrical Engineering, School of Engineering, Blekinge Institute of Technology, SE371 75, Karlskrona, Sweden aut NATIONALLICENCE 700 1- Sällberg Benny Department of Electrical Engineering, School of Engineering, Blekinge Institute of Technology, SE371 75, Karlskrona, Sweden aut NATIONALLICENCE 700 1- Nordberg Jörgen Department of Electrical Engineering, School of Engineering, Blekinge Institute of Technology, SE371 75, Karlskrona, Sweden aut NATIONALLICENCE 700 1- Tufvesson Fredrik Department of Electrical and Information Technology, Lund University, SE221 00, Lund, Sweden aut NATIONALLICENCE 700 1- Claesson Ingvar Department of Electrical Engineering, School of Engineering, Blekinge Institute of Technology, SE371 75, Karlskrona, Sweden aut NATIONALLICENCE 773 0- Wireless Personal Communications Springer US; http://www.springer-ny.com 68/1(2013-01-01), 27-46 0929-6212 68:1<27 2013 68 11277 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer