Search results for: Md. Farhad Hossain
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CNS Neuroscience & Therapeutics > 29 > 7 > 1848 - 1864
Introduction and Aims
Alzheimer's disease (AD) is characterized by the abnormal accumulation of hyperphosphorylated tau proteins and amyloid‐beta (Aβ) peptides. Recent studies have shown that many microRNAs (miRNAs) are dysregulated in AD, and modulation of these miRNAs can influence the development of tau and Aβ pathology. The brain‐specific miRNA miR‐128, encoded by MIR128‐1 and MIR128‐2, is important...
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Molecular Neurobiology > 2019 > 56 > 12 > 8255-8276
Melatonin, a pineal gland synthesized neurohormone is known as a multifunctioning pleiotropic agent which has a wide range of neuroprotective role in manifold age-related neurodegenerative disorders especially Alzheimer’s diseases (AD). AD is a devastating neurodegenerative disorder and common form of dementia which is defined by abnormal and excessive accumulation of several toxic peptides including...
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Journal of Solution Chemistry > 2019 > 48 > 2 > 105-124
Interactions of the fluoroquinolone antibiotic drug levofloxacin hemihydrate (LFH) with tetradecyltrimethylammonium bromide (TTAB) were studied in water and in the presence of additives sodium chloride (NaCl) and ethanol (C2H5OH) at 303.15 to 323.15 K with an interval of 5 K. Only one critical micelle concentration (c*) was obtained for TTAB in water. However, three different critical micelle concentrations...
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Considering the time-varying power consumption of users and cost of generation over a day, demand side management (DSM) has become essential to meet the excessive need of users with the limited source of power. In this paper, we propose a utility based optimal Real-Time Pricing (RTP) mechanism for the future smart grid communication systems such that the electricity price corresponds to the optimum...
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Wireless Networks > 2019 > 25 > 1 > 269-285
Conventional planning and optimization of cellular mobile networks for supporting the peak-time user demand leads to substantial wastage of electrical energy. Infrastructure sharing among geographically collocated networks is considered promising for energy efficient operation of future cellular systems. Therefore, this paper proposes a generalized energy-efficient cooperation framework for sharing...
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Conventional planning and optimization of cellular networks for supporting the peak-time user demand leads to substantial wastage of electrical energy. Therefore, we propose an energy-aware dynamic network provisioning framework for realizing green mobile cellular systems by reducing energy consumption in access networks. Proposed mechanism allows base stations (BSs) to offload their entire traffic...
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Successful wireless communications in underwater with high throughput possess a great challenge still today. Due to the unique environment in underwater, medium access protocols (MAC) for terrestrial networks are not suitable for such environment. High attenuation of electromagnetic (EM) wave in water makes acoustic wave a more appropriate choice for communication in underwater. However, the low available...
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LIE addresses the escalating demand of data rates by introducing several multiple-input and multiple-output (MIMO) transmission modes. One of the potential MIMO technique is to send independent data streams over multiple antennas. This is known as spatial multiplexing. The simplest form of spatial multiplexing is open-loop spatial multiplexing (OLSM). The performance of OLSM can be improved further...
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Green cellular networking has drawn intensive attention recently for cellular operators in order to reduce the network operation cost and carbon footprints. In this paper, we consider base stations (BSs) powered by hybrid power supplies including both the conventional grid and the renewable solar energy. We propose a model for energy cooperation among BSs having individual energy storages which are...
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Energy efficient cellular networking has recently drawn increasing attention for reducing network operation cost without sacrificing the quality of service (QoS). This paper proposes a framework for energy cooperation among base stations (BSs) in coordinated multi-point (CoMP) transmission based cellular networks, where the BSs are powered by hybrid power supplies including both the conventional grid...
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Underwater sensor networks play a great role in research areas by gathering knowledge about the inaccessible parts of the underwater. The sensory nodes in the network aid us by performing real time data acquisition which is needed to forecast different natural calamities. However communication in underwater with high success rate is quiet challenging because of the nature of the environment. Due to...
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In this paper, we propose an efficient method of distance estimation for the localization of wireless capsule endoscope (WCE) using received signal strength indicator (RSSI). As RSSI is attenuated with change of distance, we can use RSSI measurements to estimate the distance. The main challenge in wireless capsule localization in the gastrointestinal (GI) tract is the random deviation in RSSI measurements...
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Introduced by long-term evolution-advanced (LTE-A) cellular systems, coordinated multi-point (CoMP) transmission has shown remarkable aptitude for improving network performance. This paper proposes a novel CoMP technique for the downlink of two-tier heterogeneous LTE-A cellular networks. Thorough investigation is carried out to evaluate its performance in terms of total throughput, energy efficiency...
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Distributed antenna system (DAS), consisting of multiple antenna elements (AEs) serving a single base station (BS), is a promising scheme for long term evolution (LTE) cellular systems. In various studies, DAS based networks with uniformly distributed users have been shown to yield higher capacity and reliability. However, to the best of our knowledge, non-uniform user distribution has not been taken...
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LTE-A addresses the challenges of coverage block holes and increase in user density with new features, such as small cell and femto cell. Small cell can be an inexpensive substitute to macro cell in coverage depleted areas. In contrast, heterogeneous network using femto cells with its ubiquitous coverage, can deliver high-speed data. Resource scheduling algorithm has an important role in determining...
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Coordinated multi-point (CoMP) transmission introduced by long-term evolution-advanced (LTE-A) cellular systems has shown great promise for improving network spectral efficiency (SE). On the other hand, the ever increasing energy consumption in cellular systems has emerged as a major concern for the network operators. This paper proposes a novel CoMP technique for the downlink of two-tier heterogeneous...
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Acoustic, wave based underwater wireless sensor networks (UWSNs), commonly used for underwater surveillance and explorations, fail to meet the growing demand for fast detection and higher data rates. Electromagnetic (EM) wave based underwater networks; on the other hand, have great potential for supporting such stringent requirements for various applications. Therefore, this paper proposes and investigates...
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European Transactions on Telecommunications > 27 > 3 > 357 - 372
Conventional peak‐traffic‐based provisioning of cellular mobile networks leads to a significant wastage of electrical energy. Therefore, we propose a novel traffic‐aware two‐dimensional dynamic network provisioning mechanism for enhancing the energy efficiency in orthogonal frequency division multiple access (OFDMA)‐based cellular systems. Proposed scheme, named as joint dynamic sectorisation and...
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For observations and surveillance in oceanic environment, acoustic based underwater wireless sensor networks (UWSNs), the widely used medium, is highly challenged while the demand for underwater operations with fast response and higher data rates is on the rise. In such scenarios, radio frequency (RF) based underwater networks exhibit great potentials for supporting these requirements. From that fact,...
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Due to the relatively longer coverage capability, acoustic wave based underwater networks are commonly used for navigating autonomous underwater vehicles (AUVs). However, significantly slower propagation speeds of acoustic waves make the navigation of AUVs prone to substantial operational delay. Though electromagnetic (EM) signal suffers from severe attenuation in underwater environment, it can be...
