naa a22 4500 510798292 CHVBK 20180411083344.0 cr unu---uuuuu 180411e20131001xx s 000 0 eng 10.1007/s11277-013-1115-y doi (NATIONALLICENCE)springer-10.1007/s11277-013-1115-y A Two-Way MIMO Relaying Scheme with Partial Channel State Information [Elektronische Daten] [Chunguo Li, Luxi Yang, Wei-Ping Zhu] In this paper, an mean squared error-optimal relaying scheme is presented for two-way multiple-input multiple-output cooperative relaying systems where only partial channel state information (CSI) is available at the relays due to the high speed mobility. By considering two typical CSI scenarios, namely, fixed relays and high-velocity mobile relays, an optimum relaying scheme is designed for multi-antenna relays. The difficulty of the optimizations lies in the unknown channel response and the special structure of the block diagonal relaying matrix. It is proved that the optimization problem can be converted to an easy-to-solve problem by performing matrix manipulations and employing the channel statistics, such that the Lagrangian multiplier method is ready to be used to obtain an analytical solution. Simulation study is conducted to justify the superior performance of the proposed two-way relaying scheme. Springer Science+Business Media New York, 2013 Cooperative relays nationallicence Two-way nationallicence Mean squared error (MSE) nationallicence Multiple-input multiple-output (MIMO) nationallicence Amplify-and-forward nationallicence Li Chunguo The Key Laboratory of Underwater Acoustic Signal Processing of Ministry of Education, School of Information Science and Engineering, Southeast University, 210096, Nanjing, China aut Yang Luxi The Key Laboratory of Underwater Acoustic Signal Processing of Ministry of Education, School of Information Science and Engineering, Southeast University, 210096, Nanjing, China aut Zhu Wei-Ping The Department of Electrical and Computer Engineering, Concordia University, H3G 1M8, Montreal, QC, Canada aut Wireless Personal Communications Springer US; http://www.springer-ny.com 72/4(2013-10-01), 1949-1968 0929-6212 72:4<1949 2013 72 11277 https://doi.org/10.1007/s11277-013-1115-y text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11277-013-1115-y text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Li Chunguo The Key Laboratory of Underwater Acoustic Signal Processing of Ministry of Education, School of Information Science and Engineering, Southeast University, 210096, Nanjing, China aut NATIONALLICENCE 700 1- Yang Luxi The Key Laboratory of Underwater Acoustic Signal Processing of Ministry of Education, School of Information Science and Engineering, Southeast University, 210096, Nanjing, China aut NATIONALLICENCE 700 1- Zhu Wei-Ping The Department of Electrical and Computer Engineering, Concordia University, H3G 1M8, Montreal, QC, Canada aut NATIONALLICENCE 773 0- Wireless Personal Communications Springer US; http://www.springer-ny.com 72/4(2013-10-01), 1949-1968 0929-6212 72:4<1949 2013 72 11277 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer