Energy-Efficient CoMP Precoding in Heterogeneous Networks
作者： Zhikun Xu , Chenyang Yang , Geoffrey Ye Li , Yalin Liu , Shugong Xu
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摘要: Heterogeneous networks (HetNets) consisting of macro- and pico-cells can well tackle the contradictory requirements on large coverage network high data rate at hot spots. In this paper, we study energy-efficient precoding for coordinated multi-point (CoMP) transmission HetNets. We formulate a problem that maximizes energy efficiency under constraints individual date requirement from each user, maximal transmit power base station (BS), zero-forcing (ZF) HetNet where macro-BS cooperates with multiple pico-BSs. then simplify help practical topology HetNets By introducing subspace decomposition method exploiting feature HetNets, obtain structure optimal ZF CoMP precoder. To reduce computational complexity hence circuit consumed signal processing, propose suboptimal precoder closed-form expression isolated pico-cells. demonstrate performance proposed precoders by comparing several existing linear precoders.
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sci-hub.se 参考文章(28)
A. Barbieri, P. Gaal, S. Geirhofer, T. Ji, D. Malladi, Y. Wei, F. Xue, Coordinated downlink multi-point communications in heterogeneous cellular networks information theory and applications. pp. 7- 16 ,(2012) , 10.1109/ITA.2012.6181826
H. Weingarten, Y. Steinberg, S.S. Shamai, The Capacity Region of the Gaussian Multiple-Input Multiple-Output Broadcast Channel IEEE Transactions on Information Theory. ,vol. 52, pp. 3936- 3964 ,(2006) , 10.1109/TIT.2006.880064
Chenyang Yang, Shengqian Han, Xueying Hou, A. F. Molisch, How do we design CoMP to achieve its promised potential IEEE Wireless Communications. ,vol. 20, pp. 67- 74 ,(2013) , 10.1109/MWC.2013.6472201
Shiwen He, Yongming Huang, Shi Jin, Fei Yu, Luxi Yang, Max-Min Energy Efficient Beamforming for Multicell Multiuser Joint Transmission Systems IEEE Communications Letters. ,vol. 17, pp. 1956- 1959 ,(2013) , 10.1109/LCOMM.2013.082613.131540
Q.H. Spencer, A.L. Swindlehurst, M. Haardt, Zero-forcing methods for downlink spatial multiplexing in multiuser MIMO channels IEEE Transactions on Signal Processing. ,vol. 52, pp. 461- 471 ,(2004) , 10.1109/TSP.2003.821107
Kai-Kit Wong, R.D. Murch, K.B. Letaief, A joint-channel diagonalization for multiuser MIMO antenna systems IEEE Transactions on Wireless Communications. ,vol. 2, pp. 773- 786 ,(2003) , 10.1109/TWC.2003.814347
Wei Yu, Tian Lan, Transmitter Optimization for the Multi-Antenna Downlink With Per-Antenna Power Constraints IEEE Transactions on Signal Processing. ,vol. 55, pp. 2646- 2660 ,(2007) , 10.1109/TSP.2006.890905
D H N Nguyen, Tho Le-Ngoc, Multiuser Downlink Beamforming in Multicell Wireless Systems: A Game Theoretical Approach IEEE Transactions on Signal Processing. ,vol. 59, pp. 3326- 3338 ,(2011) , 10.1109/TSP.2011.2135347
Jun Zhang, Runhua Chen, J.G. Andrews, A. Ghosh, R.W. Heath, Networked MIMO with clustered linear precoding IEEE Transactions on Wireless Communications. ,vol. 8, pp. 1910- 1921 ,(2009) , 10.1109/TWC.2009.080180
A. Wiesel, Y.C. Eldar, S. Shamai, Linear precoding via conic optimization for fixed MIMO receivers IEEE Transactions on Signal Processing. ,vol. 54, pp. 161- 176 ,(2006) , 10.1109/TSP.2005.861073