In this paper, we consider a MIMO networked control system with an energy harvesting sensor, where an unstable MIMO dynamic system is connected to a controller via a MIMO fading channel. We focus on the energy harvesting and MIMO precoding design at the sensor so as to stabilize the unstable MIMO dynamic plant subject to the energy availability constraint at the sensor. Using the Lyapunov optim...

Abstract— In order to increase the diversity order of a multiantenna system at a moderate cost of complexity, one may choose Orthogonal Space-Time Block Coding (OSTBC). In this paper, OSTBC is combined with linear precoding matrices to improve the space-time-frequency diversity. Different linear precoding matrices based on either Fourier, Vandermonde or Hadamard constructions are proposed where...

An ultra-high data rate time reversal (TR) multiple-input multiple-output (MIMO) ultra-wideband (UWB) communication system with space-time precoding is proposed. When the symbol duration is set to approach the duration of UWBmonocycles, the data rate is close to the limit, resulting in the severe intersymbol interference (ISI). The zero-forcing (ZF) criterion-based spacetime precoding presented...

Time reversal precoding accomplishes matched-filtering of the channel in wireless communication systems by precoding before every transmit antenna with the time reversed complex conjugate of the wireless channel impulse response. While time reversal maximizes the received signal energy at a single time instant (as with matched filtering) it does not eliminate intersymbol interference. This is e...

The performance of integer-forcing equalization for communication over the compound multiple-input multipleoutput channel is investigated. An upper bound on the resulting outage probability as a function of the gap to capacity has been derived previously, assuming a random precoding matrix drawn from the circular unitary ensemble is applied prior to transmission. In the present work a simple an...

In this article, we investigate the linear precoder based on the maximization of the minimum Euclidean distance between two received data vectors. This new precoding matrix is expressed as the product of a power allocation matrix and an input-shaping matrix. The input-shaping matrix is selected as a normalized discrete Fourier transform-matrix, and the optimal power allocation depends on the ch...

When perfect channel state information (CSI) is available at a receiver, the maximum Doppler diversity gains from frequency flat time selective (FFTS) fading channels can be achieved with a pair of judiciously designed precoding and grouping scheme. When CSI is not available at the receiver, modelling FFTS fading channels with basis expansion models (BEM) enables channel estimation without know...

We present application of interference avoidance methods to multiuser systems with multiple inputs and multiple outputs. A general signal space formulation is used which makes the approach applicable to any MIMO system model regardless of the choice of basis functions. Information is transmitted via multicode CDMA where symbols that comprise the data frame from a given user are “spread” over th...

We propose a unitary precoding scheme, namely polar-precoding, to improve the performance of polar-coded MIMO systems. In contrast traditional design criteria, proposed polar-precoding scheme relies on polarization criterion . particular, matrix comprises two steps. After selecting basic for ma...

Problem statement: Multiple Input and Multiple Output (MIMO) system with Multihop relaying techhnique is significant and active areas of wireless communication. In a rich scattering environment MIMO antenna system provides better channel capacity and data rates than single antenna systems. To provide high throughput, reliable transmission and broad coverage, wireless relaying techniques are ess...