15 research outputs found

    On MMSE methods for blind identification of OFDM-based SIMO systems

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    This paper considers the problem of channel identification in OFDM-based SIMO systems. In this contribution, we focus on minimum mean square error (MMSE) algorithm, which exploits the system structure and offers superior estimation performance. Simulation results are provided to illustrate this claim and to assess the performance of the proposed algorithms. © 2009 IEEE

    Blind channel identification for OFDM-based SIMO systems

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    We introduce blind channel identification and equalization for orthogonal frequency division multiplexing (OFDM) system using a guard interval (GI). To perform channel identification, Subspace-based methods are proposed. To achieve enhanced performance and robustness to channel frequency nulls, receiver diversity and OFDM is combined. The performance of the proposed system is illustrated by computer simulations. ©2008 IEEE

    Blind Channel Identification and Equalization for GI-less OFDM Systems

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    Consensus recommendations on fasting during Ramadan for patients with kidney disease: review of available evidence and a call for action (RaK Initiative)

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    Abstract Ramadan fasting (RF) involves abstaining from food and drink during daylight hours; it is obligatory for all healthy Muslims from the age of puberty. Although sick individuals are exempt from fasting, many will fast anyway. This article explores the impact of RF on individuals with kidney diseases through a comprehensive review of existing literature and consensus recommendations. This study was conducted by a multidisciplinary panel of experts. The recommendations aim to provide a structured approach to assess and manage fasting during Ramadan for patients with kidney diseases, empowering both healthcare providers and patients to make informed decisions while considering their unique circumstances
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