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Journal articles on the topic 'Intercell interference (ICI)'

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1

Choi, Hyun-Ho. "On the Degrees of Freedom of Interference Alignment for Multicell MIMO Interfering Broadcast Channels." Scientific World Journal 2014 (2014): 1–8. http://dx.doi.org/10.1155/2014/827357.

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The interference alignment (IA) is a promising technique to efficiently mitigate interference and to enhance capacity of a wireless network. This paper proposes an interference alignment scheme for a cellular network withLcells andKusers under a multiple-input multiple-output (MIMO) Gaussian interfering broadcast channel (IFBC) scenario. The proposed IA scheme aligns intercell interferences (ICI) into a small dimensional subspace through a cooperative receive beamforming and cancels both the ICI and interuser interferences (IUI) simultaneously through a transmit beamforming. We characterize th
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2

Nguyen, Thanh-Luan, and Dinh-Thuan Do. "Exploiting Impacts of Intercell Interference on SWIPT-Assisted Non-Orthogonal Multiple Access." Wireless Communications and Mobile Computing 2018 (November 25, 2018): 1–12. http://dx.doi.org/10.1155/2018/2525492.

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In this paper, we examine the influence of intercell interference (ICI) on the system outage behavior with important derived results in the proposed model of simultaneous wireless information and power transfer (SWIPT) together with the nonorthogonal multiple access (NOMA) using the amplify-and-forward protocol. We derive the closed-form expression of coverage probability for two NOMA users as a function of the signal-to-interference-plus-noise ratio (SINR). To fully take into account the effect of ICI, we adopt more practical parameters to evaluate the optimal power splitting coefficient rega
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3

Usman, M. Rehan, M. Arslan Usman, Soo Young Shin, et al. "Walsh–Hadamard Transform Based Non-Orthogonal Multiple Access (NOMA) and Interference Rejection Combining in Next-Generation HetNets." Mathematics 9, no. 4 (2021): 348. http://dx.doi.org/10.3390/math9040348.

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In heterogeneous networks (HetNets), non-orthogonal multiple access (NOMA) has recently been proposed for hybrid-access small-cells, promising a manifold network capacity compared to OMA. One of the major issues with the installation of a hybrid-access mechanism in small-cells is the cross-tier interference (intercell interference (ICI)) caused by the macrocell users (MUs) that are unable to establish a connection to the small-cell base station (SBS). In this paper, a joint strategy is proposed for hybrid-access small-cells using the Walsh–Hadamard transform (WHT) with NOMA and interference re
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4

Xiong, Canyun, Shiyong Chen, Liang Li, and Yucheng Wu. "Pilot Assignment Based on Graph Coloring and Location Information in Multicell Multiuser Massive MIMO Systems." Wireless Communications and Mobile Computing 2021 (July 15, 2021): 1–12. http://dx.doi.org/10.1155/2021/9913149.

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A massive multiple-input multiple-output (MIMO) system uses a large number of antennas in the base station (BS) to serve multiple users, which significantly improves the capacity of the system. However, in time division duplex (TDD) mode, the pilot contamination (PC) is inevitable due to the multiplexing of pilots. This paper proposed a pilot assignment based on graph coloring and location information (GC-LI) to improve the performance of users. Specifically, based on graph coloring, the proposed GC-LI algorithm combines location information like the angle of arrival (AoA), distance, and corre
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J.Vinoth, kumar. "Integrating Range Decoder with MIMO STBC HARQ System." Journal of Telecommunication Study 3, no. 3 (2018): 29–34. https://doi.org/10.5281/zenodo.2446344.

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As an expansion of the third era of versatile correspondence framework. The Inter Cell Interference (ICI) is two components which constrains the show of remote cell systems. In the literatures different frequency reuse schemes have been proposed to overcome above limitations. One of the accepted methods is Soft Frequency Reuse which effectively controls the spectrum management and reduces the ICI for wireless networks. In regular static Soft Frequency Reuse (SFR) plot, transmission control in cell and designation of subcarriers are settled amid the framework organization, which influences the
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6

Mukhtar, Alaa M., Rashid A. Saeed, Rania A. Mokhtar, Elmustafa Sayed Ali, and Hesham Alhumyani. "Performance Evaluation of Downlink Coordinated Multipoint Joint Transmission under Heavy IoT Traffic Load." Wireless Communications and Mobile Computing 2022 (January 6, 2022): 1–16. http://dx.doi.org/10.1155/2022/6837780.

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Emerging 5G network cellular promotes key empowering techniques for pervasive IoT. Evolving 5G-IoT scenarios and basic services like reality augmented, high dense streaming of videos, unmanned vehicles, e-health, and intelligent environments services have a pervasive existence now. These services generate heavy loads and need high capacity, bandwidth, data rate, throughput, and low latency. Taking all these requirements into consideration, internet of things (IoT) networks have provided global transformation in the context of big data innovation and bring many problematic issues in terms of up
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7

Fernández Campo, Betty Nayibe, Lesly Alejandra González Camacho, and Claudia Milena Hernández Bonilla. "IMPACTO DEL REUSO DE FRECUENCIA FRACCIONAL EN LA REDUCCIÓN DE INTERFERENCIA INTERCELDA EN LTE." Revista de Investigaciones Universidad del Quindío 25, no. 1 (2014): 28–39. http://dx.doi.org/10.33975/riuq.vol25n1.146.

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La Interferencia Inter-Celda (ICI, Inter-Cell Interference) es un problema que desafía el desempeño de las redes Evolución a Largo Término (LTE, Long Term Evolution), sin embargo existen técnicas de Coordinación de Interferencia Inter-Celda (ICIC, Inter-Cell Interference Coordination) como el Reuso de Frecuencia Fraccional (FFR, Fractional Frequency Reuse) que permiten mitigar dicha interferencia y mejorar el desempeño de los Equipos de Usuario (UE, User Equipment), especialmente aquellos terminales situados en el borde de la celda. Este artículo analiza el desempeño de la técnica Reuso de Fre
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8

Divyshree, M., D.R. Kushal, V.H. Murugheshgouda, Ganashree T.S. Dr., and Sayed Abdulhayan Dr. "Deployment of Intercell Interference Coordination in LTE Using Time Domain Approach." Journal of Control System and Control Instrumentation 5, no. 1 (2019): 15–18. https://doi.org/10.5281/zenodo.2605065.

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<em>The main focus is on Intercell Interference Coordination (ICIC) technique in Heterogeneous network (HetNet) deployments, where macro and Pico cells independently optimize their downlink transmission with coordination, here we make this strategic coexistence as a multiple system aiming to joint interference management and cell association using tools from reinforcement Learning, agents sense the environment and self-adapt based on local information to maximize network performance mainly using parameters like Channel State Information (CSI), Channel Quality Indicator (CQI) that are fed back
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9

Kumbhar, Abhaykumar. "Performance Improvement Using ICIC for UAV-Assisted Public Safety Networks with Clustered Users during Emergency." Telecom 4, no. 4 (2023): 816–35. http://dx.doi.org/10.3390/telecom4040036.

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The application of drones, also known as unmanned aerial vehicles deployed as unmanned aerial base stations (UABSs), has received extensive interest for public safety communications (PSC) to fill the coverage gaps and establish ubiquitous connectivity. In this article, we design a PSC LTE-Advanced air–ground-based HetNet (AG-HetNet) that is a scenario representation of a geographical area during and after a disaster. As part of the AG-HetNet infrastructure, we have UABSs and ground user equipment (GUE) flocking together in clusters at safe places or evacuation shelters. AG-HetNet uses cell ran
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10

Priti, R. Kale1 Vishal B. Babar2 Ashish B. Jadhav3. "Analytical Method Validated Techniques For The Simultaneous Estimation Of Olmesartan Medoxomil And Ramipril By RP-HPLC Method." International Journal in Pharmaceutical Sciences 2, no. 1 (2024): 13–22. https://doi.org/10.5281/zenodo.10450799.

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A reverse phase high performance liquid chromatopgraphic simultaneous estimation&nbsp; (HPLC) was developedand validated as per ICH 2019, US FDA 2018 guidelines for quantification of Ramipril (RAM) and Olmesartan Medoxomil.&nbsp; In present study, Estimatimation&nbsp; of Olmesartan Medoxomil (OLM) and Ramipril (RAM) in tablet formulation,&nbsp; accurate, and affordable approach has been established. Both OLM and RAM are angiotensin-converting enzyme inhibitors, which are antihypertensive drugs. The combination of Ramipril (RAM) and Olmesartan Medoxomil (ATV) in Telmy-R is a particularly effect
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11

Burton, Mwakwata Collins, Osama Elgarhy, Muhammad Mahtab Alam, et al. "Cooperative Scheduler to Enhance Massive Connectivity in 5G and Beyond by Minimizing Interference in OMA and NOMA." IEEE Systems Journal Early Access (October 7, 2021). https://doi.org/10.1109/JSYST.2021.3114338.

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The fifth-generation (5G) and beyond 5G (B5G) wireless networks introduced massive machine-type communications (mMTC) to cope with the growing demand of massive Internet of Things (IoT) applications. However, the heterogeneous characteristics of massive IoT and diverse quality of service (QoS) requirements may lead to severe interference that could degrade the expected QoS of the cellular ecosystem. Therefore, this article studies the impact of interference caused by mMTC connections. We theoretically model the intercell interference (ICI) minimization problem for the existing orthogonal multi
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12

Ngala, Daniel Kuyoli, Kwasi Adu-Boahen Opare, Emmanuel Ampoma Affum, Kwame Oteng Gyasi, and Kwame Opuni-Boachie Obour Agyekum. "A greedy algorithm for pilot contamination mitigation using LAP." Journal of Engineering and Applied Science 70, no. 1 (2023). http://dx.doi.org/10.1186/s44147-023-00239-z.

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AbstractIn this paper, we propose a linear assignment problem (LAP) scheme using greedy algorithms to alleviate the intercell interference (ICI) in massive multi-input multiple-output (maMIMO) systems. ICI has been recognized as one of the main challenges of massive MIMO systems and occurs when pilot sequences (PSs) are reused across neighboring cells or using non-orthogonal PS, and this results in a phenomenon known as pilot contamination (PC). The proposed scheme uniquely assigns pilot sequences to mobile terminals to mitigate PC such that the optimal or near-optimal solution is achieved. Th
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13

Elsayed, Rania A., Youssef A. Diab, Khalid F. A. Hussein, Asmaa E. A. Farahat, and Azhar A. Hamdi. "Performance Enhancement of Indoor Cellular Visible Light Communication through Cell Size and Wavelength Reuse Pattern." Wireless Personal Communications, October 18, 2023. http://dx.doi.org/10.1007/s11277-023-10755-z.

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AbstractThe emerging technology of visible light communication (VLC) has become a promising solution for the requirements of wide-bandwidth, high-speed, and infinite-capacity wireless communication networks. A novel design of high-performance multi-user indoor visible light communication (VLC) based on hexagonal-cell arrangement is introduced in the present paper. The wavelength division multiple access (WDMA) is used to enable multiple users to communicate through the network of access point (APs) by assigning a unique wavelength division channel (WDC) to each user. A wavelength reuse scheme
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14

Ashok, Patel Arunoday Kumar Prajapati Badaruddin Vaishali Rathi Kuldeep Patel* Jagdish Chand Rathi*. "SIMULTANEOUS ESTIMATION OF RABEPRAZOLE SODIUM AND ACECLOFENAC COMBINED CAPSULE DOSAGE FORM AS PER ICH GUIDELINE BY UV SPECTROSCOPIC METHODS." iajps,csk publications 04, no. 01 (2017). https://doi.org/10.5281/zenodo.268626.

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The present work aimed to develop and validate spectrophotometric methods for simultaneous estimation of rabeprazole sodium and aceclofenac in a pure and capsule dosage form. A simple, sensitive, spectrophotometric method in UV region has been developed for the simultaneous estimation of Rabeprazole sodium and Aceclofenac in bulk and semi dosage form (Capsule). Standard solution of Rabeprazole sodium shows maximum absorbance at 283 nm and Aceclofenac shows maximum absorbance at 276 nm. Beer’s Lamberts law is obeyed in concentration range 10-60 µg/ml for Rabeprazole with regression, slope and i
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15

Sun, Yuqing, Xiu Ting Yiew, Janet Beeler‐Marfisi, Carolyn L. Kerr, Gabrielle Monteith, and Shane Bateman. "Method Comparison and Investigation of Interference Variables of a Hand‐Held Hemoglobinometer(HemoCue Hb 201+) in Cats." Veterinary Clinical Pathology, July 15, 2025. https://doi.org/10.1111/vcp.70035.

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ABSTRACTBackgroundRegular blood sampling to monitor RBC mass in anemic cats can exacerbate anemia. Laboratory‐based reporting can delay clinical decisions. A hand‐held hemoglobinometer, HemoCue Hb 201+ (HC‐201), requires only one drop of blood (10 μL) and provides results within 1 min.ObjectivesThis preliminary study aimed to evaluate the utility of HC‐201 in cats and investigate the impact of potential interferents on its performance.MethodsOne hundred and fifty‐four venous blood samples in EDTA from 93 cats were analyzed. Hemoglobin concentration was measured once using an ADVIA 2120 analyze
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16

Suryan, A. L., V. K. Bhusari, K. S. Rasal, and S. R. Dhaneshwar. "SIMULTANEOUS QUANTITATION AND VALIDATION OF PARACETAMOL, PHENYLPROPANOLAMINE HYDROCHLORIDE AND CETIRIZINE HYDROCHLORIDE BY RP-HPLC IN BULK DRUG AND FORMULATION." International Journal of Pharmaceutical Sciences and Drug Research, October 1, 2018, 303–8. https://doi.org/10.25004/ijpsdr.2011.030406.

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A HPLC method has been described for simultaneous determination of Paracetamol, Phenylpropanolamine hydrochloride and Cetirizine hydrochloride in formulation. This method is based on HPLC separation of the three drugs on the Thermo Hypersil Gold C18 column (250 mm × 4.6 mm, 5.0µ), with isocratic conditions and mobile phase containing methanol: 0.01M disodium hydrogen phosphate dihydrate buffer [pH 7, adjusted with Ortho Phosphoric Acid (OPA)] (60: 40) at a flow rate of 1 ml/min, using UV detection at 217 nm. This method has been applied to formulation without any interference of excipients of
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17

Schierscher, Tobias, Linda Salzmann, Neeraj Singh, et al. "An isotope dilution-liquid chromatography-tandem mass spectrometry (ID-LC-MS/MS)-based candidate reference measurement procedure for the quantification of carbamazepine in human serum and plasma." Clinical Chemistry and Laboratory Medicine (CCLM), December 13, 2023. http://dx.doi.org/10.1515/cclm-2023-0943.

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Abstract Objectives An isotope dilution liquid chromatography-tandem mass spectrometry (ID-LC-MS/MS)-based candidate reference measurement procedure (RMP) was developed and validated to accurately measure serum and plasma concentrations of carbamazepine. Methods Quantitative nuclear magnetic resonance (qNMR) spectroscopy was used to determine the absolute content of the reference material, ensuring its traceability to SI units. The separation of carbamazepine from potential interferences, whether known or unknown, was achieved using a C18 column. A protein precipitation protocol followed by a
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