naa a22 4500 510794181 CHVBK 20180411083330.0 cr unu---uuuuu 180411e20130501xx s 000 0 eng 10.1007/s11277-012-0727-y doi (NATIONALLICENCE)springer-10.1007/s11277-012-0727-y Turbo Receiver for Multicarrier Spread Spectrum Systems Employing Parity Bit Selected Spreading Sequences [Elektronische Daten] [Alireza Mirzaee, Claude D'Amours] In this paper a turbo receiver for multicarrier spread spectrum systems employing parity bit selected spreading code (MC-SS-PB) is proposed where detection and decoding are performed iteratively for each detected bit in the receiver. In MC-SS-PB systems, the parity bits generated by a linear block encoder are used to select a spreading code from a set of orthogonal spreading sequences. The selected spreading code is then used to spread the signals in all subcarriers. In the proposed receiver, soft information passes between the detector and the decoder on multiple iterations. Detection is performed by using the received signal in combination with the extrinsic likelihood provided by a soft input soft output decoder. The turbo receiver is further extended to a multiple user system where the multiple access interference is estimated in each iteration and subtracted out from the received signal. Simulations show a significant reduction in bit error rates when a turbo receiver is used in these systems. Springer Science+Business Media, LLC., 2012 Multicarrier spread spectrum systems nationallicence Turbo coding nationallicence CDMA nationallicence Multiuser detection nationallicence Mirzaee Alireza School of Electrical Engineering and Computer Science, University of Ottawa, Ottawa, Canada aut D'Amours Claude School of Electrical Engineering and Computer Science, University of Ottawa, Ottawa, Canada aut Wireless Personal Communications Springer US; http://www.springer-ny.com 70/2(2013-05-01), 889-902 0929-6212 70:2<889 2013 70 11277 https://doi.org/10.1007/s11277-012-0727-y text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11277-012-0727-y text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Mirzaee Alireza School of Electrical Engineering and Computer Science, University of Ottawa, Ottawa, Canada aut NATIONALLICENCE 700 1- D'Amours Claude School of Electrical Engineering and Computer Science, University of Ottawa, Ottawa, Canada aut NATIONALLICENCE 773 0- Wireless Personal Communications Springer US; http://www.springer-ny.com 70/2(2013-05-01), 889-902 0929-6212 70:2<889 2013 70 11277 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer