naa a22 4500 510792839 CHVBK 20180411083325.0 cr unu---uuuuu 180411e20130701xx s 000 0 eng 10.1007/s11277-012-0849-2 doi (NATIONALLICENCE)springer-10.1007/s11277-012-0849-2 Performance of Adaptive Modulation Scheme for Adaptive Minimum Symbol Error Rate Beamforming Receiver [Elektronische Daten] [Siti Ibrahim, Mohamad Alias, Nurul Ahmad] This paper considers adaptive beamforming receiver that support multiple users, each having one transmit antenna. In certain circumstances, symbol error rate (SER) performance of the beamforming receiver degrades severely. In order to minimize the SER, minimum symbol error rate (MSER) beamforming receiver is utilized. Then, we propose an adaptive modulation scheme for the receiver to maintain the average SER below the target SER while maximizing the average throughput. The scheme uses the information on the direction of arrival and the average signal-to-noise ratio to decide the appropriate modulation mode. For comparison, the proposed scheme is also applied to minimum mean square error (MMSE) beamforming receiver system. Simulations were carried out in the presence of single and two interferers. Simulation results show that the performance of the proposed algorithm employing MSER beamforming is superior to its MMSE counterpart, with the largest advantage of 0.21 in the outage probability. Springer Science+Business Media, LLC., 2012 Adaptive beamforming nationallicence Adaptive modulation nationallicence MSER nationallicence MMSE nationallicence Ibrahim Siti Faculty of Engineering, Multimedia University, 63100, Cyberjaya, Selangor, Malaysia aut Alias Mohamad Faculty of Engineering, Multimedia University, 63100, Cyberjaya, Selangor, Malaysia aut Ahmad Nurul Faculty of Engineering, Multimedia University, 63100, Cyberjaya, Selangor, Malaysia aut Wireless Personal Communications Springer US; http://www.springer-ny.com 71/2(2013-07-01), 873-886 0929-6212 71:2<873 2013 71 11277 https://doi.org/10.1007/s11277-012-0849-2 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11277-012-0849-2 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Ibrahim Siti Faculty of Engineering, Multimedia University, 63100, Cyberjaya, Selangor, Malaysia aut NATIONALLICENCE 700 1- Alias Mohamad Faculty of Engineering, Multimedia University, 63100, Cyberjaya, Selangor, Malaysia aut NATIONALLICENCE 700 1- Ahmad Nurul Faculty of Engineering, Multimedia University, 63100, Cyberjaya, Selangor, Malaysia aut NATIONALLICENCE 773 0- Wireless Personal Communications Springer US; http://www.springer-ny.com 71/2(2013-07-01), 873-886 0929-6212 71:2<873 2013 71 11277 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer