Recently ensemble selection for consensus clustering has emerged as a research problem in Machine Intelligence. Normally consensus clustering algorithms take into account the entire ensemble of clustering, where there is a tendency of generating a very large size ensemble before computing its consensus. One can avoid considering the entire ensemble and can judiciously select few partitions in t...

— We consider space-time-frequency transmit diversity with orthogonal designs in a broadband OFDM system. Based on capacity considerations for Gaussian as well as real world signal constellations, we show that the concatenation of an outer error control code, a bit interleaver and orthogonal spatial transmit diversity provides an attractive MIMO scheme which is simple and fairly robust to chann...

The main objective of this project is to design the full-rate Space-Time-Frequency Trellis code (STFTC), which is based on Quasi-Orthogonal designs for Multiple-Input Multiple-Output (MIMO) Orthogonal Frequency Division Multiplexing (OFDM) systems. The proposed Quasi-Orthogonal Space-TimeFrequency Trellis code combines set partitioning and the structure of quasi-orthogonal space-frequency desig...

An influential ecological theory, the intermediate disturbance hypothesis (IDH), predicts that intermediate levels of disturbance will maximize species diversity. Empirical studies, however, have described a wide variety of diversity-disturbance relationships (DDRs). Using experimental populations of microbes, we show that the form of the DDR depends on an interaction between disturbance freque...

Space-time coding for the flat fading, quasistatic MIMO wireless channel has received wide spread attention. This paper treats space-time code design for frequency selective channels from a single carrier modulation perspective. We present a general framework for analyzing space-time codes for delay spread channels based on PEP analysis. It is shown that as in the flat fading case, diversity ga...

We provide expressions for the bit error rate of various transmit and receive diversity schemes for Orthogonal Frequency-Division Multiplexing (OFDM) systems in the presence of frequency offset, phase noise and channel estimation errors. The derivations are also applicable for a general multiplicative distortion of the received signal. We compare two transmit diversity schemes (space-time and s...

Frequency-domain pre-equalization (pre-FDE) transmission can be used instead of FDE reception for improving the transmission performance in a severe frequency-selective fading channel. Antenna diversity technique is also a well-known technique for improving the transmission performance, especially, transmit antenna diversity technique has been attracting much attention. In this paper, we propos...