Precoded Spatial Multiplexing MIMO for Inhome Power Line Communications

Inhome power line communications (PLC) enables new and highly convenient networking functions without any additional wires to mains-powered devices. Multiple input multiple output (MIMO) methods can significantly increase the PLC channel throughput and the link reliability. In this paper precoded spatial multiplexing is considered in more detail since it offers the best possible data throughput in the PLC channel. Precoded spatial multiplexing requires channel state information (CSI) at the transmitter. CSI feedback possibilities as well as appropriate quantization methods to reduce the amount of feedback data are investigated. We also present a new power allocation algorithm in conjunction with adaptive modulation.

[1]  T. Banwell,et al.  A novel approach to the modeling of the indoor power line channel-Part II: transfer function and its properties , 2005, IEEE Transactions on Power Delivery.

[2]  James V. Krogmeier,et al.  Reduced Feedback MIMO-OFDM Precoding and Antenna Selection , 2007, IEEE Transactions on Signal Processing.

[3]  Rohit U. Nabar,et al.  Introduction to Space-Time Wireless Communications , 2003 .

[4]  Anna Scaglione,et al.  Optimal designs for space-time linear precoders and decoders , 2002, IEEE Trans. Signal Process..

[5]  Robert W. Heath,et al.  Grassmannian beamforming for multiple-input multiple-output wireless systems , 2003, IEEE Trans. Inf. Theory.

[6]  A. Schwager,et al.  Potential of broadband power line home networking , 2005, Second IEEE Consumer Communications and Networking Conference, 2005. CCNC. 2005.

[7]  Charles R. Johnson,et al.  Matrix analysis , 1985, Statistical Inference for Engineers and Data Scientists.