naa a22 4500 510798039 CHVBK 20180411083343.0 cr unu---uuuuu 180411e20131001xx s 000 0 eng 10.1007/s11277-013-1124-x doi (NATIONALLICENCE)springer-10.1007/s11277-013-1124-x Coordinated Precoding Techniques for Multi-cell MISO-OFDM Networks [Elektronische Daten] [Reza Holakouei, Adão Silva, Daniel Castanheira, Atílio Gameiro] The aim of this manuscript is to propose and compare several distributed linear precoding schemes for the downlink of multicell MISO-OFDM based systems. The precoder vectors are computed in a distributed manner at each BS, assuming that the BSs have only knowledge of local channel state information and considering several criteria: distributed zero-forcing (DZF), maximum ratio transmission and distributed virtual signal-to-interference noise ratio (DVSINR). Then the system is further optimized through centralized power allocation. Two centralized power allocation algorithms with per-BS power constraint and different complexity tradeoffs are proposed: namely, minimization of the instantaneous average BER and minimization of the sum of inverse of signal-to-interference noise ratio, for which a closed-form power allocation scheme is derived. The performance of the proposed schemes is compared considering typical pedestrian scenarios based on LTE specifications. The numerical results show that increasing the number of degrees of freedom or for high SNR, the proposed DZF approaches tends to the DVSINR based ones. Springer Science+Business Media New York, 2013 Coordination nationallicence Precoding nationallicence Multicell nationallicence MISO nationallicence OFDM and Downlink nationallicence Holakouei Reza DETI, Instituto de Telecomunicações, University of Aveiro, Campus Universitário de Santiago, 3180, Aveiro, Portugal aut Silva Adão DETI, Instituto de Telecomunicações, University of Aveiro, Campus Universitário de Santiago, 3180, Aveiro, Portugal aut Castanheira Daniel DETI, Instituto de Telecomunicações, University of Aveiro, Campus Universitário de Santiago, 3180, Aveiro, Portugal aut Gameiro Atílio DETI, Instituto de Telecomunicações, University of Aveiro, Campus Universitário de Santiago, 3180, Aveiro, Portugal aut Wireless Personal Communications Springer US; http://www.springer-ny.com 72/3(2013-10-01), 1619-1631 0929-6212 72:3<1619 2013 72 11277 https://doi.org/10.1007/s11277-013-1124-x text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11277-013-1124-x text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Holakouei Reza DETI, Instituto de Telecomunicações, University of Aveiro, Campus Universitário de Santiago, 3180, Aveiro, Portugal aut NATIONALLICENCE 700 1- Silva Adão DETI, Instituto de Telecomunicações, University of Aveiro, Campus Universitário de Santiago, 3180, Aveiro, Portugal aut NATIONALLICENCE 700 1- Castanheira Daniel DETI, Instituto de Telecomunicações, University of Aveiro, Campus Universitário de Santiago, 3180, Aveiro, Portugal aut NATIONALLICENCE 700 1- Gameiro Atílio DETI, Instituto de Telecomunicações, University of Aveiro, Campus Universitário de Santiago, 3180, Aveiro, Portugal aut NATIONALLICENCE 773 0- Wireless Personal Communications Springer US; http://www.springer-ny.com 72/3(2013-10-01), 1619-1631 0929-6212 72:3<1619 2013 72 11277 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer