Consider a simple two-way relaying channel where two single-antenna sources exchange information via a multiple-antenna relay. To such a scenario, all the existing works which can achieve full diversity order are based on the antenna/relay selection, where the difficulty to design the beamforming lies in the fact that a single beamformer needs to serve two destinations. In this paper, we propos...

This dissertation focuses on three major advances on multiple-input multiple-output (MIMO) systems. The first studies and compares decoding algorithms for multi-layered space time coded (MLSTC) systems. These are single user systems that combine spatial multiplexing and transmit diversity. Each layer consists of a space time code. The detection algorithms are based on multi-user detection theor...

Space-time block codes with orthogonal structures typically provide full-diversity reception and simple receiver processing. However, full-rate orthogonal codes for complex constellations have not been found for more than two transmit antennas. By using a genetic algorithm, rate1 space-time block codes that accommodate very simple receiver processing at the cost of reduced diversity are designe...

The use of cultivation-independent approaches to map microbial diversity, including recent work published in BMC Biology, has now shown that protists, like bacteria/archaea, are much more diverse than had been realized. Uncovering eukaryotic diversity may now be limited not by access to samples or cost but rather by the availability of full-length reference sequence data.

Single-carrier (SC) block transmission with cyclic prefix (CP) has several advantages that has been seen in this paper. The aim of this paper to improved the performance of SC-FDE multi-antenna SC-FDE by using cyclic-delay diversity (CDD) and Alamouti signaling. Analysis characterizes the diversity, it shows that diversity depends on the antenna configuration, channel memory, data block length ...

In the recent years, multiple-input multiple-out (MIMO) technology has attracted lots of attention because it significantly increases the data throughput (multiplexing gain) and link reliability (diversity gain) without additional bandwidth or transmission power. Orthogonal frequency division multiplexing (OFDM) technology has been developed into a popular scheme for wideband digital communicat...