Liu Jian-guo, Xu Dao-feng, Lin Min, Yang Lu-xi. Multi-user Precoding and Scheduling Algorithm for Spatial Correlation-Aided Ricean Fading Channel with Partial CSI[J]. Journal of Electronics & Information Technology, 2009, 31(1): 53-56. doi: 10.3724/SP.J.1146.2007.01189
Citation:
Liu Jian-guo, Xu Dao-feng, Lin Min, Yang Lu-xi. Multi-user Precoding and Scheduling Algorithm for Spatial Correlation-Aided Ricean Fading Channel with Partial CSI[J]. Journal of Electronics & Information Technology, 2009, 31(1): 53-56. doi: 10.3724/SP.J.1146.2007.01189
Liu Jian-guo, Xu Dao-feng, Lin Min, Yang Lu-xi. Multi-user Precoding and Scheduling Algorithm for Spatial Correlation-Aided Ricean Fading Channel with Partial CSI[J]. Journal of Electronics & Information Technology, 2009, 31(1): 53-56. doi: 10.3724/SP.J.1146.2007.01189
Citation:
Liu Jian-guo, Xu Dao-feng, Lin Min, Yang Lu-xi. Multi-user Precoding and Scheduling Algorithm for Spatial Correlation-Aided Ricean Fading Channel with Partial CSI[J]. Journal of Electronics & Information Technology, 2009, 31(1): 53-56. doi: 10.3724/SP.J.1146.2007.01189
In order to exploit multi-user diversity gain and spatial multiplexing gain for multi-user MIMO (Multiple-Input Multiple-Output) system with spatial correlation-aided Ricean fading channel, a joint multi-user precoding and scheduling algorithm is proposed based on partial Channel State Information (CSI). Utilizing partial instantaneous CSI and statistical CSI for all users, the Base Station (BS) estimates the channel for each user using Constrained Maximum Likelihood (CML) approach, and then schedules a group of users with optimal precoding using the estimated channels. Simulation results demonstrate that the proposed scheme greatly improves system throughput with a bit of feedback overhead.
Costa M. Writing on dirty paper[J].IEEE Trans. onInformation Theory.1983, 29(5):439-451[2]Spencer Q H, Peel C P, Swindlehurst A L, and Haardt M. Anintroduction to the multiuser MIMO downlink. IEEECommunication Magazine, 2004, 42(10): 60-67.[3]Wu Y L, Zhang J F, Xu M G, Zhou S D, and Xu X B.Multiuser MIMO downlink precoder design based on themaximal SJNR criterion. IEEE Global TelecommunicationsConference (GLOBECOM), St. Louis, Missouri. 2005(5):2694-2698.[4]Sharif M and Hassibi B. On the capacity of MIMO broadcastchannels with partial side information[J].IEEE Trans. onInform. Theory.2005, 51(2):506-522[5]Gesbert D, Pittman L, and Kountouris M. Transmitcorrelation-aided scheduling in multiuser MIMO networks.IEEE International Conference on Acoustics, Speech andSignal Processing (ICASSP), Toulouse, France, 2006(4):249-252.[6]Shen Z, Chen, R Andrews J R, Heath R W, and Evans B L.Low complexity user selection algorithms for multiuserMIMO systems with block digitalization[J].IEEE Trans. onSignal Process.2006, 54(9):3658-3663
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