Increased data rates and reliability are the two key factors required to support emerging multimedia applications and new communications technologies. The two techniques used in high data rate transmission are orthogonal frequency division multiplexing (OFDM) and multiple-input multiple-output (MIMO) scheme. The OFDM is used to mitigate the problem of inter symbol interference (ISI) and provide...

This paper studies the stability analysis of multivariable fuzzy control systems. Particularly, the stability of Takagi-Sugeno (TS) systems is addressed. The results presented in the paper make possible the application of both input-output and frequency response methods to TS systems identified from Input-Output data. The paper also presents the Fuzzy Algorithm Stability Tool (FAST) toolbox dev...

Multi-carrier code division multiple access (MC-CDMA) is a promising multiple access scheme. An extremely high spectrum efficient transmission technique is required in future wireless communication systems. The use of multiple-input multiple-output (MIMO) space division multiplexing (SDM) is essential to achieve a very high speed data transmission with a limited bandwidth. In this paper, we der...

An astonishing difference in the performance of non-orthogonal space–time block codes (NOSTBCs) on wireless multiple-input= multiple-output (MIMO) systems compared to one-dimensional block codes operating on single-input=single-output (SISO) channels is derived. Using NOSTBCs, single symbol errors are no longer the only dominating error types, but multiple symbol errors can dominate the error p...

Multiple-input multiple-output spatial multiplexing (MIMO-SM) ultrawideband (UWB) systems with orthogonal frequency division multiplexing (OFDM) signaling are developed. It is shown that the proposed linear and nonlinear receivers offer substantial spatial diversity beside data rate enhancement.

To suppress the strong interference in multiple input multiple output (MIMO) systems, an iterative receiver with a linear detector for complex symbols is investigated. We show that the considered generalized MIMO system, i.e., a system that transmits besides the pure data also complex conjugate replications, transforms the MIMO channel such that the output signal becomes rotationally variant. T...

The capacity of Multiple Input Multiple Output (MIMO) communication systems depends on the spatial properties of the MIMOchannel. This work shows how in particular partial correlation of channel coefficients affects the capacity of the system. For partially correlated channel coefficients the performance of such systems can be further be enhanced by the use of channel knowledge at the transmitt...

Performance limits of information transfer over a discrete time memoryless Rayleigh fading channel with neither the receiver nor the transmitter knowing the fading coefficients except its statistics is an important problem in information theory. We derive closed form expressions for the mutual information of single input single output (SISO) and multiple input multiple output (MIMO) Rayleigh fa...