naa a22 4500 510791328 CHVBK 20180411083320.0 cr unu---uuuuu 180411e20130701xx s 000 0 eng 10.1007/s11277-012-0797-x doi (NATIONALLICENCE)springer-10.1007/s11277-012-0797-x Semi-analytic Performance of a Multiaccess MIMO Scheme Using Precoding Vectors [Elektronische Daten] [Hamid Meghdadi, Vahid Meghdadi, Jean-Pierre Cances] This paper addresses the problem of transmitting data to multiple mobile stations using a decode-and-forward strategy. Precoding vectors are used in relays to cancel out multiple access interference at the mobile stations. The diversity gain of the system has been analytically calculated for the case of two mobile stations. The system performance for arbitrary number of mobile stations is calculated using a semi analytic approach. In this approach the distribution of signal to noise ratio is approximated by a mixture of Nakagami laws using an Expectation-Maximization algorithm. Then the symbol error probability of this mixture is analytically calculated. Simulations confirm the theoretical results showing that the full diversity advantage can be obtained, which is the product of the number of antennas at each relay by the number of relays minus the total number of system constraints. Springer Science+Business Media, LLC., 2012 Multi-user multiple-input multiple-output system nationallicence Precoding vectors nationallicence Diversity gain nationallicence Pseudo inverse matrix nationallicence Wishart matrix nationallicence Expectation maximization nationallicence Mixture of Nakagami distributions nationallicence Meghdadi Hamid University of Limoges/ENSIL, 16 rue Atlantis, 87000, Limoges, France aut Meghdadi Vahid University of Limoges/ENSIL, 16 rue Atlantis, 87000, Limoges, France aut Cances Jean-Pierre University of Limoges/ENSIL, 16 rue Atlantis, 87000, Limoges, France aut Wireless Personal Communications Springer US; http://www.springer-ny.com 71/1(2013-07-01), 83-108 0929-6212 71:1<83 2013 71 11277 https://doi.org/10.1007/s11277-012-0797-x text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11277-012-0797-x text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Meghdadi Hamid University of Limoges/ENSIL, 16 rue Atlantis, 87000, Limoges, France aut NATIONALLICENCE 700 1- Meghdadi Vahid University of Limoges/ENSIL, 16 rue Atlantis, 87000, Limoges, France aut NATIONALLICENCE 700 1- Cances Jean-Pierre University of Limoges/ENSIL, 16 rue Atlantis, 87000, Limoges, France aut NATIONALLICENCE 773 0- Wireless Personal Communications Springer US; http://www.springer-ny.com 71/1(2013-07-01), 83-108 0929-6212 71:1<83 2013 71 11277 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer