With non-GEO constellations the primary means of counteracting the shadowing and the blockage effects is through the use of the satellite diversity, i.e. multiple satellites in the constellation are simultaneously visible to user. The probability system availability is improved by increasing the probability at least one satellite is in clear Line Of Sight. In the selection diversity (SD) scheme...

The identity of patients must be protected when patient data are shared. The two most commonly used models to protect identity of patients are L-diversity and K-anonymity. However, existing work mainly considers data sets with a single sensitive attribute, while patient data often contain multiple sensitive attributes (e.g., diagnosis and treatment). This article shows that although the K-anony...

In this paper, we use the selective combining diversity over Rayleigh fading channel is presented. Different diversity techniques are available in the literature. Different techniques behave differently with different coding techniques. Here, diversity analysis of the Rayleigh fading channel is presented in Space time block codes (STBC). We are using the system model of the space time block cod...

Two-way communication is a key feature in a smart grid. It is enabled by either powerline communication (PLC) or wireless communication technologies. Utilizing both technologies can potentially enhance communication reliability, and many diversity combining schemes have been proposed. However, their assumptions may break under realistic conditions. In this paper, we propose a flexible real-time...

This paper proposes low-complexity preand postfrequency domain equalization and frequency diversity combining methods for block transmission schemes with cyclic prefix. In the proposed methods, the equalization and diversity combining are performed simultaneously in discrete frequency domain. The weights for the proposed equalizer and combiner are derived based on zero-forcing and minimummean-s...

We present multiple-input multiple-output orthogonal frequency division multiplexing (MIMO-OFDM) based broadband power line communication (BPLC) using antenna and fading diversity. We evaluate the proposed MIMO-OFDM system over multi-conductor power line channels, with or without cross-talk between the antenna paths. The proposed scheme employs maximum ratio combining (MRC) that effectively com...

We propose a new generalized selection combining (GSC) scheme that selects diversity branches out of ( ) diversity branches based on the magnitude of log-likelihood ratio (LLR), which, for BPSK signals, is proportional to the product of the fading amplitude and the matched filter output. The proposed GSC is shown to provide a significant power gain over the conventional GSC which selects divers...

We report an investigation into the interference rejection capabilities of a dual antenna system on a mobile telephone prototype for the 1800 MHz band. The investigation is done by means of narrowband downlink channel measurements in a microcellular-like environment. Complex signal samples are used in order to investigate the interference rejection gain with di erent diversity combining schemes...

In this paper, the multistage multiuser detector for communication over multipath fading channel is considered. The detector consists of a matched filters bank and a linear equalizer whose outputs are diversity combined to produce initial data estimates. Using these data estimates multiuser interference is reconstructed and removed from the output signals of a the matched filters bank. Afterwar...

The purpose of this comment is to provide a critical discussion of the new method of performance analysis of diversity systems proposed in the abovementioned paper. It is shown that this method provides incorrect results for equal-gain and selective combining. A new method of performance analysis of two-branch receive diversity systems has been presented in the paper mentioned above.1 The main ...