naa a22 4500 510792537 CHVBK 20180411083324.0 cr unu---uuuuu 180411e20130801xx s 000 0 eng 10.1007/s11277-012-0989-4 doi (NATIONALLICENCE)springer-10.1007/s11277-012-0989-4 Mobile Communications Using Source-Selected Multi-Antenna AF Relays Over Dual-Hop Nakagami- $${\varvec{m}}$$ Channels [Elektronische Daten] [I. McLoughlin, S. Prakash] This paper presents a scheme for dual-hop amplify-and-forward multi-antenna, multi-relay selection over Nakagami-m fading channels. A source-selected best relay performs maximal ratio combining on received data, applies variable gain, and then uses beamforming to transmit to a destination device. Such a configuration is beneficial for end-to-end communication using single antenna mobile terminals with a multi-antenna relay infrastructure. Closed form expressions for performance metrics are derived that cater for arbitrary number of relays, arbitrary number of receive and transmit antennas and different fading parameters. Results are verified through simulation. Furthermore, the influence of multiple antennas, the effects of fading, power imbalance between hops, and the beneficial impact of additional relays are explored. Springer Science+Business Media New York, 2013 Relaying nationallicence AF relay nationallicence PRS nationallicence MIMO nationallicence Nakagami- m nationallicence McLoughlin I. School of Information Science and Technology, The University of Science and Technology of China, Dept. 6, PO Box 4, 230027, Hefei, China aut Prakash S. Broadcom India Private Ltd, Campus 3A, 5th Floor, RMZ EcoSpace Bellandur Village, 560 037, Varthur Hobli, Bangalore, India aut Wireless Personal Communications Springer US; http://www.springer-ny.com 71/4(2013-08-01), 3045-3057 0929-6212 71:4<3045 2013 71 11277 https://doi.org/10.1007/s11277-012-0989-4 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11277-012-0989-4 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- McLoughlin I. School of Information Science and Technology, The University of Science and Technology of China, Dept. 6, PO Box 4, 230027, Hefei, China aut NATIONALLICENCE 700 1- Prakash S. Broadcom India Private Ltd, Campus 3A, 5th Floor, RMZ EcoSpace Bellandur Village, 560 037, Varthur Hobli, Bangalore, India aut NATIONALLICENCE 773 0- Wireless Personal Communications Springer US; http://www.springer-ny.com 71/4(2013-08-01), 3045-3057 0929-6212 71:4<3045 2013 71 11277 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer