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Journal articles on the topic 'Channel reliability metrics'

Author: Grafiati

Published: 4 June 2021

Last updated: 2 February 2022

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1

Forsting, Johannes, Marlena Rohm, Martijn Froeling, Anne-Katrin Güttsches, Matthias Vorgerd, Lara Schlaffke, and Robert Rehmann. "High Inter-Rater Reliability of Manual Segmentation and Volume-Based Tractography in Healthy and Dystrophic Human Calf Muscle." Diagnostics 11, no. 9 (August 24, 2021): 1521. http://dx.doi.org/10.3390/diagnostics11091521.

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Background: Muscle diffusion tensor imaging (mDTI) is a promising surrogate biomarker in the evaluation of muscular injuries and neuromuscular diseases. Since mDTI metrics are known to vary between different muscles, separation of different muscles is essential to achieve muscle-specific diffusion parameters. The commonly used technique to assess DTI metrics is parameter maps based on manual segmentation (MSB). Other techniques comprise tract-based approaches, which can be performed in a previously defined volume. This so-called volume-based tractography (VBT) may offer a more robust assessmen

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Amezcua Valdovinos, Ismael, Patricia Elizabeth Figueroa Millán, Jesús Arturo Pérez-Díaz, and Cesar Vargas-Rosales. "Distributed Channel Ranking Scheduling Function for Dense Industrial 6TiSCH Networks." Sensors 21, no. 5 (February 25, 2021): 1593. http://dx.doi.org/10.3390/s21051593.

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The Industrial Internet of Things (IIoT) is considered a key enabler for Industry 4.0. Modern wireless industrial protocols such as the IEEE 802.15.4e Time-Slotted Channel Hopping (TSCH) deliver high reliability to fulfill the requirements in IIoT by following strict schedules computed in a Scheduling Function (SF) to avoid collisions and to provide determinism. The standard does not define how such schedules are built. The SF plays an essential role in 6TiSCH networks since it dictates when and where the nodes are communicating according to the application requirements, thus directly influenc

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Jin, Yong, and Guangwei Bai. "Energy-Aware Adaptive Cooperative FEC Protocol in MIMO Channel for Wireless Sensor Networks." Journal of Electrical and Computer Engineering 2013 (2013): 1–9. http://dx.doi.org/10.1155/2013/891429.

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We propose an adaptive cooperative forward error correction (ACFEC) based on energy efficiency combining Reed-Solomon (RS) coder algorithm and multiple input multiple output (MIMO) channel technology with monitoring signal-to-noise ratio (SNR) in wireless sensor networks. First, we propose a new Markov chain model for FEC based on RS codes and derive the expressions for QoS on the basis of this model, which comprise four metrics: throughput, packet error rate, delay, and energy efficiency. Then, we apply RS codes with the MIMO channel technology to the cross-layer design. Numerical and simulat

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Bokharaie, V. Samadi, and A. Jahanian. "Side-channel leakage assessment metrics and methodologies at design cycle: A case study for a cryptosystem." Journal of Information Security and Applications 54 (October 2020): 102561. http://dx.doi.org/10.1016/j.jisa.2020.102561.

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Chiariotti, Federico, Israel Leyva-Mayorga, Čedomir Stefanović, Anders E. Kalør, and Petar Popovski. "Spectrum Slicing for Multiple Access Channels with Heterogeneous Services." Entropy 23, no. 6 (May 28, 2021): 686. http://dx.doi.org/10.3390/e23060686.

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Wireless mobile networks from the fifth generation (5G) and beyond serve as platforms for flexible support of heterogeneous traffic types with diverse performance requirements. In particular, the broadband services aim for the traditional rate optimization, while the time-sensitive services aim for the optimization of latency and reliability, and some novel metrics such as Age of Information (AoI). In such settings, the key question is the one of spectrum slicing: how these services share the same chunk of available spectrum while meeting the heterogeneous requirements. In this work we investi

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Kulow, Alexander, Thomas Schamberger, Lars Tebelmann, and Georg Sigl. "Finding the Needle in the Haystack: Metrics for Best Trace Selection in Unsupervised Side-Channel Attacks on Blinded RSA." IEEE Transactions on Information Forensics and Security 16 (2021): 3254–68. http://dx.doi.org/10.1109/tifs.2021.3074884.

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Ateeq, Muhammad, Muhammad Khalil Afzal, Muhammad Naeem, Muhammad Shafiq, and Jin-Ghoo Choi. "Deep Learning-Based Multiparametric Predictions for IoT." Sustainability 12, no. 18 (September 19, 2020): 7752. http://dx.doi.org/10.3390/su12187752.

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Wireless Sensor Networks (WSNs) and Internet of Things (IoT) often suffer from error-prone links when deployed in resource-constrained industrial environments. Reliability is a critical performance requirement of loss-sensitive applications, and Signal-to-Noise Ratio (SNR) is a key indicator of successful communications. In addition to the improvement of the physical layer through modulation and channel coding, machine learning offers adaptive solutions by configuring various communication parameters dynamically. In this paper, we apply a Deep Neural Network (DNN) to predict SNR and Packet Del

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Asuti, Manjunath G., and Prabhugoud I. Basarkod. "Efficiency enhancement using optimized static scheduling technique in TSCH networks." International Journal of Electrical and Computer Engineering (IJECE) 10, no. 2 (April 1, 2020): 1952. http://dx.doi.org/10.11591/ijece.v10i2.pp1952-1962.

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In recent times, the reliable and real-time data transmission becomes a mandatory requirement for various industries and organizations due to the large utilization of Internet of Things (IoT) devices. However, the IoT devices need high reliability, precise data exchange and low power utilization which cannot be achieved by the conventional Medium Access Control (MAC) protocols due to link failures and high interferences in the network. Therefore, the Time-Slotted Channel Hopping (TSCH) networks can be used for link scheduling under the IEEE 802.15.4e standard. In this paper, we propose an Opti

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Gibbs, Matthew S., David McInerney, Greer Humphrey, Mark A. Thyer, Holger R. Maier, Graeme C. Dandy, and Dmitri Kavetski. "State updating and calibration period selection to improve dynamic monthly streamflow forecasts for an environmental flow management application." Hydrology and Earth System Sciences 22, no. 1 (February 1, 2018): 871–87. http://dx.doi.org/10.5194/hess-22-871-2018.

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Abstract. Monthly to seasonal streamflow forecasts provide useful information for a range of water resource management and planning applications. This work focuses on improving such forecasts by considering the following two aspects: (1) state updating to force the models to match observations from the start of the forecast period, and (2) selection of a shorter calibration period that is more representative of the forecast period, compared to a longer calibration period traditionally used. The analysis is undertaken in the context of using streamflow forecasts for environmental flow water man

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Yamashkin, Stanislav, Milan Radovanovic, Anatoliy Yamashkin, and Darko Vukovic. "Using ensemble systems to study natural processes." Journal of Hydroinformatics 20, no. 4 (March 5, 2018): 753–65. http://dx.doi.org/10.2166/hydro.2018.076.

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Abstract Increasing accuracy of the data analysis of remote sensing of the Earth significantly affects the quality of decisions taken in the field of environmental management. The article describes the methodology for decoding multispectral space images based on the ensemble learning concept, which can effectively solve important problems of geosystems mapping, including diagnostics of the structure and condition of catchment basins, inventory of water bodies and assessment of their ecological state, study of channel processes; monitoring and forecasting of functioning, dynamics and developmen

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Hao, Sheng, and Huyin Zhang. "MAC Performance Analysis for Reliable Power-Line Communication Networks with ARQ Scheme." Sensors 21, no. 1 (December 30, 2020): 196. http://dx.doi.org/10.3390/s21010196.

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Power-line communication (PLC) networks have been increasingly used for constructing industrial IoT (internet of things) and home networking systems due to their low-cost installation and broad coverage feature. To guarantee the transmission reliability, ARQ (automatic repeat request) scheme is introduced into the link layer of reliable PLC networks, which allows the retransmission of a data frame several times so that it has a higher probability to be correctly received. However, current studies of performance analysis for PLC MAC (medium access control) protocol (i.e., IEEE 1901) do not take

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Yankovskii, Nikita, and Igor Pastushok. "On multiplexing data streams using trellis-coded modulation in centralized wireless networks." Information and Control Systems, no. 2 (April 29, 2021): 52–59. http://dx.doi.org/10.31799/1684-8853-2021-2-52-59.

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Problem statement: The proliferation of services and applications requiring ultra-low latency and high reliability of data transmission in communication networks leads to creating new approaches and architectures in order to ensure the simultaneous transmission of Enhanced Mobile Broadband (eMBB) and Ultra-Reliable and Low Latency Communication (URLLC) traffic. Providing efficient eMBB and URLLC multiplexing schemes with preset key performance indicators for each stream is the most challenging problem in wireless network development. Purpose: To provide a simultaneous transmission of eMBB and

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Monowar, Muhammad Mostafa, and Madini O. Alassafi. "On the Design of Thermal-Aware Duty-Cycle MAC Protocol for IoT Healthcare." Sensors 20, no. 5 (February 25, 2020): 1243. http://dx.doi.org/10.3390/s20051243.

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Wireless Body Area Networks (WBANs) are designed to provide connectivity among diverse miniature body sensors that support different Internet of Things (IoT) healthcare applications. Among diverse body sensors, WBANs exploit in-vivo sensor nodes that detect and collect the required biometric data of certain physiological change inside the human body, and transmits the sensed data utilizing wireless communication. However, sensing and wireless communication activities of in-vivo sensors produce heat and could result thermal damage to the human tissue if the sensing and communication continues f

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Akhtar, Zain Ul Abiden, and Hongyu Wang. "WiFi-Based Driver’s Activity Monitoring with Efficient Computation of Radio-Image Features." Sensors 20, no. 5 (March 3, 2020): 1381. http://dx.doi.org/10.3390/s20051381.

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Driver distraction and fatigue are among the leading contributing factors in various fatal accidents. Driver activity monitoring can effectively reduce the number of roadway accidents. Besides the traditional methods that rely on camera or wearable devices, wireless technology for driver’s activity monitoring has emerged with remarkable attention. With substantial progress in WiFi-based device-free localization and activity recognition, radio-image features have achieved better recognition performance using the proficiency of image descriptors. The major drawback of image features is computati

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Pan, Yuangang, Ivor W. Tsang, Avinash K. Singh, Chin-Teng Lin, and Masashi Sugiyama. "Stochastic Multichannel Ranking with Brain Dynamics Preferences." Neural Computation 32, no. 8 (August 2020): 1499–530. http://dx.doi.org/10.1162/neco_a_01293.

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A driver's cognitive state of mental fatigue significantly affects his or her driving performance and more important, public safety. Previous studies have leveraged reaction time (RT) as the metric for mental fatigue and aim at estimating the exact value of RT using electroencephalogram (EEG) signals within a regression model. However, due to the easily corrupted and also nonsmooth properties of RTs during data collection, methods focusing on predicting the exact value of a noisy measurement, RT generally suffer from poor generalization performance. Considering that human RT is the reflection

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He, Xin, and Frank Y. Li. "Metric-Based Cooperative Routing in Multihop Ad Hoc Networks." Journal of Computer Networks and Communications 2012 (2012): 1–12. http://dx.doi.org/10.1155/2012/893867.

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Cooperative communication fully leverages the broadcast nature of wireless channels and exploits time/spatial diversity in a distributed manner, thereby achieving significant improvements in system capacity and transmission reliability. Cooperative diversity has been well studied from the physical layer perspective. Thereafter, cooperative MAC design has also drawn much attention recently. However, very little work has addressed cooperation at the routing layer. In this paper, we propose a simple yet efficient scheme for cooperative routing by using cooperative metrics including packet deliver

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Arun, Henridass, and Gulam Nabi Alsath M. "CPW fed circularly polarized wideband pie-shaped monopole antenna for multi-antenna techniques." COMPEL - The international journal for computation and mathematics in electrical and electronic engineering 37, no. 6 (November 5, 2018): 2109–21. http://dx.doi.org/10.1108/compel-12-2017-0515.

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Purpose This paper aims to present the design and implementation of a circularly polarized co-planar waveguide (CPW) fed wideband pie-shaped monopole antenna for multi-antenna techniques. Multi-antenna techniques are promising solutions for higher data rate and enhanced reliability of wireless applications. They find numerous applications in 4G/5G networks and in most wireless standards such as wireless local area networks (WLAN), wireless fidelity and worldwide interoperability for microwave access systems to enhance the channel capacity without additional spectrum by means of multi-path prop

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18

Raees, Muhammad. "Study of Software Quality Improvement through Reliability Metrics Models and Root Cause Analysis Program." International Journal of Computer Engineering and Information Technology 12, no. 6 (June 30, 2020): 42–47. http://dx.doi.org/10.47277/ijceit/12(6)1.

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Software quality is the most crucial requirement of any organization to survive in the current market scenario. The improvement of quality in software products depends on number of factors such as its architecture, quality metrics, reliability models and root cause analysis for defect handling. This paper focuses on the use of different reliability metrics to improve the reliability in software systems. Paper also emphasizes that removing defects for once is not beneficial for quality improvement, rather using a quality improvement program such as root cause analysis to get to base of defects

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19

Ogundile, O. O., M. O. Oloyede, O. A. Osanaiye, and F. A. Aina. "Improved distance metric technique for deriving soft reliability information over Rayleigh Fading Channel." Nigerian Journal of Technology 37, no. 4 (November 15, 2018): 1110. http://dx.doi.org/10.4314/njt.v37i4.34.

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20

Loeliger, H. A. "A practical reliability metric for block codes used on binary-input channels." IEEE Transactions on Communications 38, no. 4 (April 1990): 405–8. http://dx.doi.org/10.1109/26.52649.

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21

Ma, Lai, and Michael Ladisch. "Evaluation complacency or evaluation inertia? A study of evaluative metrics and research practices in Irish universities." Research Evaluation 28, no. 3 (April 16, 2019): 209–17. http://dx.doi.org/10.1093/reseval/rvz008.

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Abstract Evaluative metrics have been used for research assessment in most universities and funding agencies with the assumption that more publications and higher citation counts imply increased productivity and better quality of research. This study investigates the understanding and perceptions of metrics, as well as the influences and implications of the use of evaluative metrics on research practices, including choice of research topics and publication channels, citation behavior, and scholarly communication in Irish universities. Semi-structured, in-depth interviews were conducted with re

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Shim, Yong-Geol. "An Efficient Decoding Algorithm for Block Codes Based on the Communication Channel Reliability Information." Emerging Science Journal 4, no. 5 (October 1, 2020): 336–44. http://dx.doi.org/10.28991/esj-2020-01235.

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For channel codes in communication systems, an efficient algorithm that controls error is proposed. It is an algorithm for soft decision decoding of block codes. The sufficient conditions to obtain the optimum decoding are deduced so that the efficient method which explores candidate code words can be presented. The information vector of signal space codes has isomorphic coherence. The path metric in the coded demodulator is the selected components of scaled regions. The carrier decision is derived by the normalized metric of synchronized space. An efficient algorithm is proposed based on the

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Havedanloo, Saeed, and Hamid Reza Karimi. "Improving the Performance Metric of Wireless Sensor Networks with Clustering Markov Chain Model and Multilevel Fusion." Mathematical Problems in Engineering 2013 (2013): 1–11. http://dx.doi.org/10.1155/2013/783543.

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The paper proposes a performance metric evaluation for a distributed detection wireless sensor network with respect to IEEE 802.15.4 standard. A distributed detection scheme is considered with presence of the fusion node and organized sensors into the clustering and non-clustering networks. Sensors are distributed in clusters uniformly and nonuniformly and network has multilevel fusion centers. Fusion centers act as heads of clusters for decision making based on majority-like received signal strength (RSS) with comparison the optimized value of the common threshold. IEEE 802.15.4 Markov chain

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Ammari, Mohamed Lassaad. "Performance of Blind Turbo Equalizer in Indoor Channels." Journal of Communications Software and Systems 7, no. 2 (June 22, 2011): 52. http://dx.doi.org/10.24138/jcomss.v7i2.178.

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In this paper, we consider the transmission of turbo coded symbols in the indoor radio environment. The system isaffected by the intersymbol interference (ISI) caused by the multipath time-delay spread of the transmission medium. To reduce the channel effect, we propose to use a blind turbo equalizer combining channel estimation, equalization and turbo decoding. The equalizer consists of an interference canceller (IC) and a MAP-BCJR decoder. To improve system performances, we redefine the channel reliability factor used by the MAP-BCJR decoding algorithm. We propose a new metric that takes int

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Mikryukov, A. A., and A. V. Kuular. "Development of the Incident Management Model in an Enterprise Information System Based on a Three-Tier Architecture Using Key (Relevant) Metrics." Open Education 24, no. 3 (June 27, 2020): 78–86. http://dx.doi.org/10.21686/1818-4243-2020-3-78-86.

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The aim of the study is to increase the efficiency of the incident management process in an enterprise information system. The article analyzes the work on improving the incident management process. The expediency of applying a number of key metrics is substantiated, which makes it possible to assess the degree to which the process indicators achieved their target values, that is, assess the quality of the incident management: the speed of solving the incident, the degree of satisfaction of service users and the availability of channels for processing user requests. A comparative analysis of t

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Shafique, Muhammad Akmal, Naveed Khan Baloch, Muhammad Iram Baig, Fawad Hussain, Yousaf Bin Zikria, and Sung Won Kim. "NoCGuard: A Reliable Network-on-Chip Router Architecture." Electronics 9, no. 2 (February 17, 2020): 342. http://dx.doi.org/10.3390/electronics9020342.

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Aggressive scaling in deep nanometer technology enables chip multiprocessor design facilitated by the communication-centric architecture provided by Network-on-Chip (NoC). At the same time, it brings considerable challenges in reliability because a fault in the network architecture severely impacts the performance of a system. To deal with these reliability challenges, this research proposed NoCGuard, a reconfigurable architecture designed to tolerate multiple permanent faults in each pipeline stage of the generic router. NoCGuard router architecture uses four highly reliable and low-cost faul

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Suneela, Dr B. "HUGE MIMO TECHNOLOGY ROLE RECOGNITION FOR ITS EFFECTIVE 5G AND SATELLITE CONNECTIVITY IMPLEMENTATION." INFORMATION TECHNOLOGY IN INDUSTRY 9, no. 2 (April 10, 2021): 929–35. http://dx.doi.org/10.17762/itii.v9i2.429.

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Wireless networking provides major problems due to the large number of users (QoS). This level of demand is supposed to be satisfied by 5G technology. And with respect to satellite communication, there is also a broad data requirement. Because of the LOS requirements, as well as an increased number of cells, today's mobile phone technology can no longer meet this bandwidth an obvious solution to this problem would be using milli-metric wave communication (MIMO). It is important to use multiple antennas (MIMO) and space multiplex when using the MIM approach to improve the spectrum efficiency an

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Rashid, Muhammad, Naveed Khan Baloch, Muhammad Akmal Shafique, Fawad Hussain, Shahroon Saleem, Yousaf Bin Zikria, and Heejung Yu. "Fault-Tolerant Network-On-Chip Router Architecture Design for Heterogeneous Computing Systems in the Context of Internet of Things." Sensors 20, no. 18 (September 18, 2020): 5355. http://dx.doi.org/10.3390/s20185355.

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Network-on-chip (NoC) architectures have become a popular communication platform for heterogeneous computing systems owing to their scalability and high performance. Aggressive technology scaling makes these architectures prone to both permanent and transient faults. This study focuses on the tolerance of a NoC router to permanent faults. A permanent fault in a NoC router severely impacts the performance of the entire network. Thus, it is necessary to incorporate component-level protection techniques in a router. In the proposed scheme, the input port utilizes a bypass path, virtual channel (V

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Maričić, Srđan, Nenad Milošević, Dejan Drajić, Dejan Milić, and Jelena Anastasov. "Physical Layer Intercept Probability in Wireless Sensor Networks over Fisher–Snedecor ? Fading Channels." Electronics 10, no. 12 (June 8, 2021): 1368. http://dx.doi.org/10.3390/electronics10121368.

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In this paper, we analyze the physical layer security (PLS) of an arbitrarily dimensioned wireless sensor network (WSN) in the presence of an unauthorized attacker. Various scheduling schemes have been exploited in order to enhance the secure transmission of reliable links impaired by Fisher–Snedecor F fading. The path loss among active nodes is also considered. The exact intercept probability expressions are derived recalling an optimal scheduling scheme (OS), a scheduling policy based on a specific cumulative distribution function (CS), and round-robin scheduling as a baseline. The asymptoti

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De Keersmaecker, Wanda, Stef Lhermitte, Olivier Honnay, Jamshid Farifteh, Ben Somers, and Pol Coppin. "How to measure ecosystem stability? An evaluation of the reliability of stability metrics based on remote sensing time series across the major global ecosystems." Global Change Biology 20, no. 7 (April 26, 2014): 2149–61. http://dx.doi.org/10.1111/gcb.12495.

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Ali, Tariq, Muhammad Irfan, Ahmad Shaf, Abdullah Saeed Alwadie, Ahthasham Sajid, Muhammad Awais, and Muhammad Aamir. "A Secure Communication in IoT Enabled Underwater and Wireless Sensor Network for Smart Cities." Sensors 20, no. 15 (August 2, 2020): 4309. http://dx.doi.org/10.3390/s20154309.

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Nowadays, there is a growing trend in smart cities. Therefore, the Internet of Things (IoT) enabled Underwater and Wireless Sensor Networks (I-UWSN) are mostly used for monitoring and exploring the environment with the help of smart technology, such as smart cities. The acoustic medium is used in underwater communication and radio frequency is mostly used for wireless sensor networks to make communication more reliable. Therefore, some challenging tasks still exist in I-UWSN, i.e., selection of multiple nodes’ reliable paths towards the sink nodes; and efficient topology of the network. In thi

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Reznicek, J., T. Luhmann, and C. Jepping. "INFLUENCE OF RAW IMAGE PREPROCESSING AND OTHER SELECTED PROCESSES ON ACCURACY OF CLOSE-RANGE PHOTOGRAMMETRIC SYSTEMS ACCORDING TO VDI 2634." ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XLI-B5 (June 15, 2016): 107–13. http://dx.doi.org/10.5194/isprsarchives-xli-b5-107-2016.

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This paper examines the influence of raw image preprocessing and other selected processes on the accuracy of close-range photogrammetric measurement. The examined processes and features includes: raw image preprocessing, sensor unflatness, distance-dependent lens distortion, extending the input observations (image measurements) by incorporating all RGB colour channels, ellipse centre eccentricity and target detecting. The examination of each effect is carried out experimentally by performing the validation procedure proposed in the German VDI guideline 2634/1. The validation procedure is based

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Reznicek, J., T. Luhmann, and C. Jepping. "INFLUENCE OF RAW IMAGE PREPROCESSING AND OTHER SELECTED PROCESSES ON ACCURACY OF CLOSE-RANGE PHOTOGRAMMETRIC SYSTEMS ACCORDING TO VDI 2634." ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XLI-B5 (June 15, 2016): 107–13. http://dx.doi.org/10.5194/isprs-archives-xli-b5-107-2016.

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This paper examines the influence of raw image preprocessing and other selected processes on the accuracy of close-range photogrammetric measurement. The examined processes and features includes: raw image preprocessing, sensor unflatness, distance-dependent lens distortion, extending the input observations (image measurements) by incorporating all RGB colour channels, ellipse centre eccentricity and target detecting. The examination of each effect is carried out experimentally by performing the validation procedure proposed in the German VDI guideline 2634/1. The validation procedure is based

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Hussain, Ayaz, Muhammad Irfan, Naveed Khan Baloch, Umar Draz, Tariq Ali, Adam Glowacz, Larisa Dunai, and Jose Antonino-Daviu. "Savior: A Reliable Fault Resilient Router Architecture for Network-on-Chip." Electronics 9, no. 11 (October 27, 2020): 1783. http://dx.doi.org/10.3390/electronics9111783.

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The router plays an important role in communication among different processing cores in on-chip networks. Technology scaling on one hand has enabled the designers to integrate multiple processing components on a single chip; on the other hand, it becomes the reason for faults. A generic router consists of the buffers and pipeline stages. A single fault may result in an undesirable situation of degraded performance or a whole chip may stop working. Therefore, it is necessary to provide permanent fault tolerance to all the components of the router. In this paper, we propose a mechanism that can

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Lee, Young-Seok, Ki-Hun Lee, and Bang Chul Jung. "Beamforming Techniques for Over-the-Air Computation in MIMO IoT Networks." Sensors 20, no. 22 (November 12, 2020): 6464. http://dx.doi.org/10.3390/s20226464.

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In this paper, a novel beamforming technique is proposed as the over-the-air computation (AirComp) framework in a multiple-input multiple-output (MIMO) Internet-of-things (IoT) network consisting of multiple IoT sensors (STAs) and a single access point (AP). We assume that each IoT device has the channel state information (CSI) from itself to the AP and the AP has the global CSI of all IoT devices. We consider the mean squared error (MSE), which represents the reliability of function computation, as a performance metric. In short, each IoT device exploits maximum-ratio transmission (MRT) as a

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Oh, Hayoung. "Mobility-Aware Video Streaming in MIMO-Capable Heterogeneous Wireless Networks." Mathematical Problems in Engineering 2016 (2016): 1–12. http://dx.doi.org/10.1155/2016/8293582.

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Multiple input and multiple output (MIMO) is a well-known technique for the exploitation of the spatial multiplexing (MUX) and spatial diversity (DIV) gains that improve transmission quality and reliability. In this paper, we propose a quality-adaptive scheme for handover and forwarding that supports mobile-video-streaming services in MIMO-capable, heterogeneous wireless-access networks such as those for Wi-Fi and LTE. Unlike previous handover schemes, we propose an appropriate metric for the selection of the wireless technology and the MIMO mode, whereby a new address availability and the wir

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Mua, Lilian Ndinda, and Abel Anyieni. "Merchandizing Practices and Sales Performance of Supermarkets in Nakuru County, Kenya." International Journal of Current Aspects 3, no. VI (November 4, 2019): 16–32. http://dx.doi.org/10.35942/ijcab.v3ivi.76.

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In Kenya, the challenges of sales performance are prevalent amongst the supermarkets. A declining sales performance was noted for Uchumi supermarket in its 2016 financial year leading to its poor financial performance. Nakumatt supermarket has also had poor sales performance in the recent years leading to its struggling financial position. Merchandizing is one of the aspects that can be utilized for the purposes of improving on sales performance. The purpose of the study is to determine the effect of merchandizing practices and sales performance of Supermarkets in Nakuru County, Kenya. The stu

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Murali, K., and S. Siva Perumal. "Error rate performance analysis of power domain NOMA over AWGN and fading channels with generalized space shift keying in wireless 5G." Journal of Intelligent & Fuzzy Systems, October 26, 2020, 1–6. http://dx.doi.org/10.3233/jifs-189416.

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The Non-Orthogonal Multiple Access (NOMA) emerged as a latest solution to demand of high data rated with excellent reliability and robustness. In this paper, the performance analysis of the NOMA under fading channel is presented with emphasis on error rate calculations. In addition, the focus is on exploring the impact of various modulation techniques like binary phase shift keying (BPSK), Quadrature Phase Shift Keying (QPSK) and Generalized Space Shift Keying (GSSK). The simulation study has been performed on MATLAB tool and results are analyzed efficiently in the metrics of NOMA.

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Sharma, Vijay Kumar. "CNTFET Circuit-Based Wide Fan-In Domino Logic for Low Power Applications." Journal of Circuits, Systems and Computers, August 28, 2021, 2250036. http://dx.doi.org/10.1142/s0218126622500360.

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Carbon nanotube field effect transistors (CNTFETs) are the best alternative option for the metal oxide semiconductor field effect transistor (MOSFET) in the ultra-deep submicron (ultra-DSM) regime. CNTFET has numerous benefits such as lower off-state current, high current density, low bias potential and better transport property as compared to MOSFET. A rolled graphene sheet-based cylindrical tube is constructed in the channel region of the CNTFET structure. In this paper, an improved domino logic (IDL) configuration is proposed for domino logic circuits to improve the different performance me

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Kumar, Suresh, and Payal Arora. "Reach Enhancement of Designed Free Space Optical Communication System Using Hybrid Optical Amplifier." Journal of Optical Communications, April 5, 2019. http://dx.doi.org/10.1515/joc-2019-0022.

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AbstractFree space optical (FSO) communication is coming up as an attractive alternative to solve the connectivity hindrances. It is an efficient optical technology having several advantages such as narrow beam size, unlicensed spectrum, high reliability, huge modulation bandwidth, low power and higher grade of security. In this paper, we have proposed an FSO communication system model using EDFA-EDFA hybrid optical amplifier (HOA) configuration which provides enhanced reach and higher data rate. For transmitting channel, weak turbulence approximation which exhibits log-normal statistics is co

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B, Nithya, Naveen Ranjan, and Justin Gopinath A. "Performance Analysis of Prioritization and Contention Control Algorithm in Wireless Body Area Networks." Computer Journal, December 14, 2020. http://dx.doi.org/10.1093/comjnl/bxaa147.

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Abstract A Wireless Body Area Network (WBAN) is the composition of a group of energy-efficient, miniature, invasive/non-invasive, light-weighted sensors that monitor human body health conditions for early detection and treatment for life-threatening diseases. Due to the stringent demands of WBAN, such as energy efficiency, reliability and low delay, the development of an efficient contention control algorithm is exceptionally crucial that aims to maximize throughput by reducing collisions. In this context, this paper proposes an adaptive algorithm, namely, Prioritization and Contention Control

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"Performance Analysis of Bit Loading Algorithms for fault tolerant Submarine Communication." International Journal of Engineering and Advanced Technology 8, no. 6 (August 30, 2019): 4087–93. http://dx.doi.org/10.35940/ijeat.f8660.088619.

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In this paper, performance metrics of rate adaptive and margin adaptive bit loading algorithms is simulated and analyzed to improve the data rate in undersea communication channel. In fault tolerant undersea communication, achieving higher data rate is a challenge. Bit loading algorithms have proven efficient with limited power budget. An optimal bit loading algorithm with low complexity and fast convergence for rate adaptive and margin adaptive problems with bit error rate (BER) constraints will increase the data rate and reliability of the system significantly. The simulation has been carrie

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JAIN, MANJHARI, AKHILESH A. WAOO, P. S. Patheja, and SANJAY SHARMA. "OPTIMAL ROUTE SELECTION STRATEGY FOR QOS IMPROVEMENT." International Journal of Smart Sensor and Adhoc Network., October 2012, 136–43. http://dx.doi.org/10.47893/ijssan.2012.1152.

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An ad-hoc mobile network is a collection of mobile nodes that are dynamically and arbitrarily located in such a manner that the interconnections between nodes are capable of changing on a continual basis. Ad hoc nodes operating in a single path, single channel model might experience packet loss and high latency due to the congestion caused. Nodes along the heavy traffic path could reach the maximum bandwidth limit and experience undesirable amounts of packet drop. In Ad hoc networks the nodes are mobile and contain no infrastructure. Certain emergency messages have to be delivered with very lo

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Junior, Edson Duarte da Silva, Jacques Wainer, and Alexandre Ferreira. "Handling classification errors by learning to reject classifications." Revista dos Trabalhos de Iniciação Científica da UNICAMP, no. 26 (December 17, 2018). http://dx.doi.org/10.20396/revpibic262018369.

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This work investigates how to improve classification metrics by learning when a classifier has higher chances of misclassification. The rejection technique increases the classification reliability and reduces the costs associated with misclassifications on cost-sensitive scenarios. A scenario of bug triaging classification shows the approach effectiveness where classification accuracy is increased from 67% up to 76%.

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"Improvising Reliability and Security in Multiple Relay Network using Optimal Scheduling." International Journal of Recent Technology and Engineering 8, no. 2 (July 30, 2019): 1243–48. http://dx.doi.org/10.35940/ijrte.b1786.078219.

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In the real-time scenario involving wireless sensor networks, the data forwarding and data gathering procedures are taking place from the remote environment. With the involvement of heterogeneous architecture and multi-hop data transmission paths, there lies a serious threat for secured data communication. There may be chances of data attacks either from the inside intruder or from the external intruder. The problem of data flow attack by adding malicious information, viz. Data injection attack and outside arbitrary attack, viz. Byzantine attacks are found to be more dangerous and cause vulner

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Persad, Geeta G., Daniel L. Swain, Claire Kouba, and J. Pablo Ortiz-Partida. "Inter-model agreement on projected shifts in California hydroclimate characteristics critical to water management." Climatic Change, October 3, 2020. http://dx.doi.org/10.1007/s10584-020-02882-4.

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Abstract Shifts away from the historical hydroclimate in populated regions can have dire consequences for water management. Regions like the state of California—where highly engineered, geographically interconnected, and inflexible water management systems are predicated on particular spatiotemporal patterns of water availability—are particularly vulnerable to hydroclimate shifts. However, much of the analysis of hydroclimate sensitivity to anthropogenic climate change has focused on gross metrics like annual mean precipitation, which is highly uncertain at the regional scale. This perceived u

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Traßl, Andreas, Eva Schmitt, Tom Hößler, Lucas Scheuvens, Norman Franchi, Nick Schwarzenberg, and Gerhard Fettweis. "Outage prediction for ultra-reliable low-latency communications in fast fading channels." EURASIP Journal on Wireless Communications and Networking 2021, no. 1 (April 13, 2021). http://dx.doi.org/10.1186/s13638-021-01964-w.

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AbstractThe addition of redundancy is a promising solution to achieve a certain quality of service (QoS) for ultra-reliable low-latency communications (URLLC) in challenging fast fading scenarios. However, adding more and more redundancy to the transmission results in severely increased radio resource consumption. Monitoring and prediction of fast fading channels can serve as the foundation of advanced scheduling. By choosing suitable resources for transmission, the resource consumption is reduced while maintaining the QoS. In this article, we present outage prediction approaches for Rayleigh

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Kumar, Nagesh, and Yashwant Singh. "An Energy Efficient and Reliable Opportunistic Routing for Wireless Sensor Networks." International Journal of Sensors, Wireless Communications and Control 10 (May 3, 2020). http://dx.doi.org/10.2174/2210327910999200503033802.

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Introduction: Routing protocols in wireless sensor networks (WSN) are of major concern because of the important factors like energy efficiency and reliability. Opportunistic routing (OR) is the simplest and reliable routing technique for ad-hoc networks and WSN. The OR protocol guarantee data delivery in the network. As WSN need energy efficient routing, therefore, energy efficient OR protocols gained popularity in the last three years. Objectives: Opportunistic routing improves the performance of the network by utilizing the broadcasting abilities of wireless channels. In this paper, new ener

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Hladkykh, Valery, and Oleg Toroshanko. "THE RESEARCH OF PRODUCTIVITY OF SENSOR NETWORK: THE KEY AND AUXILIARY PERFORMANCE INDICATORS." Visnyk Universytetu “Ukraina”, 2019. http://dx.doi.org/10.36994/2707-4110-2019-1-22-11.

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Ad Hoc sensor network with mobile network nodes is considered. The basic parameters of the bandwidth and quality of the data exchange channel constructed on the sensor network are analyzed. Statistical analysis of network service quality uses a parameter based on Mean Opinion Score (MOS). This parameter takes into account characteristics such as jitter, delay time, and packet loss rate, and allows you to quantify call quality for calls in the range of 1.0 to 5.0. At the stage of designing the sensor network and in the process of its development, the task of choosing a routing algorithm is very

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Tomita, Hiroyuki, Kunio Kutsuwada, Masahisa Kubota, and Tsutomu Hihara. "Advances in the Estimation of Global Surface Net Heat Flux Based on Satellite Observation: J-OFURO3 V1.1." Frontiers in Marine Science 8 (February 5, 2021). http://dx.doi.org/10.3389/fmars.2021.612361.

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The reliability of surface net heat flux data obtained from the latest satellite-based estimation [the third-generation Japanese Ocean Flux Data Sets with Use of Remote Sensing Observations (J-OFURO3, V1.1)] was investigated. Three metrics were utilized: (1) the global long-term (30 years) mean for 1988–2017, (2) the local accuracy evaluation based on comparison with observations recorded at buoys located at 11 global oceanic points with varying climatological characteristics, and (3) the physical consistency with the freshwater balance related to the global water cycle. The globally averaged

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