naa a22 4500 510794475 CHVBK 20180411083331.0 cr unu---uuuuu 180411e20130301xx s 000 0 eng 10.1007/s11277-012-0576-8 doi (NATIONALLICENCE)springer-10.1007/s11277-012-0576-8 Multi-user Multi-stream Vector Perturbation Precoding [Elektronische Daten] [Rui Chen, Jiandong Li, Changle Li, Wei Liu] Vector perturbation (VP) is a prominent precoding technique attracted a lot of attention in recent years. Till now, however, various extended VP techniques are almost restricted to one antenna configuration of each user, termed as multi-user single-stream VP, which contradicts with the multi-antenna terminals of the next generation wireless systems. So, the popular block diagonal (BD) algorithm and VP was naturally combined and proposed to solve this problem. However, the so-called BD-VP completely suppresses multi-user interference at the expense of noise enhancement and results in performance degradation. To overcome the shortcoming of BD-VP, we propose three criteria based multi-user multi-stream VP (MUMS-VP) algorithms with different performance and complexity tradeoffs: zero-forcing expanded channel inversion (ZF ECI)-VP algorithm, minimum-total-mean-square-error criterion (MTMSE) based two MUMS-VP algorithms and maximum signal-to-leakage-and-noise-ratio (MSLNR) criterion based MUMS-VP algorithm. The general expression of achievable rates of MUMS-VP algorithms is derived. Analysis and simulation results show that the proposed ZF MUMS-VP is equivalent to BD-VP, while MTMSE MUMS-VP II has the maximum achievable sum rates among these algorithms. MTMSE MUMS-VP I, II and MSLNR MUMS-VP greatly outperform BD-VP in BER performance for both fixed modulation scenario and adaptive modulation scenario. Furthermore, all proposed algorithms have much lower complexity than BD-VP. Springer Science+Business Media, LLC., 2012 MIMO nationallicence Precoding nationallicence Multi-user multi-stream nationallicence Vector perturbation nationallicence Chen Rui Broadband Wireless Communications Laboratory, Information Science Institute, State Key Laboratory of Integrated Service Networks, Xidian University, Xian, China aut Li Jiandong Broadband Wireless Communications Laboratory, Information Science Institute, State Key Laboratory of Integrated Service Networks, Xidian University, Xian, China aut Li Changle Broadband Wireless Communications Laboratory, Information Science Institute, State Key Laboratory of Integrated Service Networks, Xidian University, Xian, China aut Liu Wei Broadband Wireless Communications Laboratory, Information Science Institute, State Key Laboratory of Integrated Service Networks, Xidian University, Xian, China aut Wireless Personal Communications Springer US; http://www.springer-ny.com 69/1(2013-03-01), 335-355 0929-6212 69:1<335 2013 69 11277 https://doi.org/10.1007/s11277-012-0576-8 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11277-012-0576-8 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Chen Rui Broadband Wireless Communications Laboratory, Information Science Institute, State Key Laboratory of Integrated Service Networks, Xidian University, Xian, China aut NATIONALLICENCE 700 1- Li Jiandong Broadband Wireless Communications Laboratory, Information Science Institute, State Key Laboratory of Integrated Service Networks, Xidian University, Xian, China aut NATIONALLICENCE 700 1- Li Changle Broadband Wireless Communications Laboratory, Information Science Institute, State Key Laboratory of Integrated Service Networks, Xidian University, Xian, China aut NATIONALLICENCE 700 1- Liu Wei Broadband Wireless Communications Laboratory, Information Science Institute, State Key Laboratory of Integrated Service Networks, Xidian University, Xian, China aut NATIONALLICENCE 773 0- Wireless Personal Communications Springer US; http://www.springer-ny.com 69/1(2013-03-01), 335-355 0929-6212 69:1<335 2013 69 11277 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer