Zahra Mohammadian

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BACKGROUND Several studies have been conducted to investigate the prevalence of preeclampsia and eclampsia in Iran. These studies have yielded different results. This meta-analysis was aimed to estimate the prevalence of preeclampsia and eclampsia in Iran. METHODS International and national electronic databases were searched up to August 2014 including(More)
Multi-input multi-output-orthogonal frequency-division multiplexing (MIMO-OFDM) is known as a proper solution for the wideband wireless communication. Numerous space-frequency block codes (SFBCs) and space-time-frequency block codes (STFBCs) have been proposed so far for implementing MIMO-OFDM systems. In this paper, a new fulldiversity STFBC is proposed(More)
Multiple-input multiple-output orthogonal frequency-division multiplexing (MIMO-OFDM) is known as a promising solution for wideband wireless communications. This is why it has been considered as a powerful candidate for IEEE 802.11n standard. Numerous spacefrequency block codes (SFBCs) and space-time-frequency block codes (STFBCs) have been proposed so far(More)
In this study, the authors present a new criterion which can be used to decompose the coding advantage (CA) of space–frequency block codes (SFBCs). The proposed decomposition separates the CA into two parts, called precoder-CA and channel-CA. The precoder-CA represents the effects of the precoder and the signal constellation, and can be used in the design(More)
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