Evolving models have found applications in many real world systems. In this paper, potentials of the Evolving Linear Models (ELMs) in tracking control design for nonlinear variable structure systems are introduced. At first, an ELM is introduced as a dynamic single input, single output (SISO) linear model whose parameters as well as dynamic orders of input and output signals can change through ...

The standard algorithm for computing the softinverse of a finite-state machine (i.e., the Soft-in/Softout or SISO) module, is the forward-backward algorithm. These forward and backward recursions can be computed in parallel, yielding an architecture with latency O(N), where N is the block size. We demonstrate that the standard SISO computation may be formulated using a combination of a prefix a...

We present a model-discovery methodology for energy-aware computing systems that achieves high prediction accuracy. Model discovery, or system identification, is a critical first step in designing advanced controllers that can dynamically manage the energy-performance trade-off in an optimal manner. Our methodology favors Multiple-InputsMultiple-Outputs (MIMO) models over a collection of Single...

A new Multiple-Input Single-Output Powerline Communications (MISO PLC) transmission scheme is proposed as an extension to the conventional Single-Input Single-Output (SISO) PLC transmission scheme to achieve high data rate with diversity. This scheme is called Enhanced-PLC scheme (EPLC). A Space-Time (ST) coding is employed at the transmitter terminal. In addition, a modified Maximum-Likelihood...

We show the storage requirements for soft-in soft-out (SISO) decoding of pulseposition modulation may be reduced by discarding a substantial subset of the slot likelihoods while suffering neglibible loss in performance in a serially concatenated, iteratively decoded scheme. We illustrate optimum processing of the remaining subset under a choose the maximum rule and show that a simplified trelli...

We demonstrate that the minimal state space realization problem in the max algebra can be transformed into an Extended Linear Complementarity Problem (ELCP). We use an algorithm that finds all solutions of an ELCP to find all equivalent minimal state space realizations of a single input single output (SISO) discrete event system. We also give a geometrical description of the set of all minimal ...

For some linear mechanical systems, which can be written as a dyadic transfer function matrix (DTM), MIMO controller design can be reduced to a number of SISO designs. Internal stability of the SISO designs guarantees stability of the resulting MIMO controller. By relating the insights from modal analysis to system theory, necessary and sufficient conditions are derived for linear mechanical sy...

This paper examines mode adaptation for MIMOOFDM-BICM systems. Our results are based on measured MIMO-OFDM channels in an indoor environment at 5 GHz. We demonstrate that a simple zero-forcing spatial multiplexing system using four transmitters and four receivers can achieve four times the SISO data rate over the real measured channels with less than 6 dB increase in SNR. We also observe that i...

A two-step design t o control integrator processes in an SISO or MIMO system is proposed. For an SISO system, the first step of the design is to stabilize the integrator process with P&D modes in a secondary loop to achieve good stability robustness and modest performance. In the second step of design, a P&I controller in the primary loop is derived to improve the overall performance. By this w...