Simulation of a vessel sensor network of ZigBee standard

Abstract The subject of the paper is a vessel sensor network designed to collect data from wireless sensors for various purposes. The peculiarity of this network application is the presence of a large number of premises, wireless communication between which is complicated. One of the possible approaches to solving this problem is to use coordinators connected by a switch into a local network, and a large number of routers that provide data relaying along the chain. Studies of the proposed vessel wireless network in the OMNeT ++ simulation modeling environment using Castalia framework are carried out in the paper. The process of modeling both the network itself and its individual components, and various modes of their operation is shown. The interaction of network nodes through intermediate routers is considered. Estimation of losses during packet delivery along a chain of routers, the time spent on processing packets in routers and delays in packet delivery to the network coordinator from the sending node is based on the compiled model. It is concluded that with the increasing complexity of the network structure (growth in the number of routers), there is a proportional rise of the packets delivery delay over the wireless network to the vessel local network. However, all transmitted packets are delivered to the addressee.

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Offer of methods for minimizing key investment risks of “R-Pharm” JSC

Issues of Risk Analysis ◽

10.32686/1812-5220-2020-17-1-58-67 ◽

2020 ◽

Vol 17 (1) ◽

pp. 58-67

Author(s):

N. A. Kabanova ◽

I. K. Alekseeva

Keyword(s):

Strategic Planning ◽

Pharmaceutical Company ◽

Simulation Modeling ◽

Return On Investment ◽

System Analysis ◽

Social Orientation ◽

Pharmaceutical Companies ◽

The Subject ◽

High Degree

The article is devoted to the assessment of potential investment risks of the pharmaceutical company “R-Pharm” JSC with the aim of identifying the highest priority risks and developing methods for minimizing them. The relevance of the study is determined by the fact that the pharmaceutical business is characterized by a high degree of social orientation and annually invests $ 140 billion in the development of production and research, which determines the need for a risk-based approach to ensure the return on investment. The subject of this article is the investment risks of pharmaceutical companies, and the subject of research is the domestic pharmaceutical company “R-Pharm”. In order to assess the potential investment risks of “R-Pharm” JSC, the authors used elements of simulation modeling and system analysis. The proposed methods to minimize key investment risks are aimed at improving the efficiency of investment activities and is recommended as an element of the strategic planning of the company.

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States analysis and Agent modeling for wireless sensor network nodes

Journal of Computer Applications ◽

10.3724/sp.j.1087.2010.03155 ◽

2011 ◽

Vol 30 (12) ◽

pp. 3155-3157

Author(s):

Zhi CHEN ◽

Jie SHI ◽

Ying KONG ◽

Yun ZHANG

Keyword(s):

Wireless Sensor Network ◽

Sensor Network ◽

Wireless Sensor ◽

Agent Modeling ◽

Network Nodes

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A Study of Malware Propagation Dynamics in Wireless Sensor Network using Spatially Correlated Security Model

Recent Advances in Computer Science and Communications ◽

10.2174/2666255813999200613230323 ◽

2020 ◽

Vol 13 ◽

Author(s):

Satya Ranjan Biswal ◽

Santosh Kumar Swain

Keyword(s):

Wireless Sensor Network ◽

Sensor Network ◽

Wireless Network ◽

Spatial Correlation ◽

Malicious Code ◽

Wireless Sensor ◽

Epidemic Theory ◽

Malware Propagation ◽

Proposed Model ◽

Propagation Dynamics

: Security is one of the important concern in both types of the network. The network may be wired or wireless. In case of wireless network security provisioning is more difficult in comparison to wired network. Wireless Sensor Network (WSN) is also a type of wireless network. And due to resource constraints WSN is vulnerable against malware attacks. Initially, the malware (virus, worm, malicious code, etc.) targets a single node of WSN for attack. When a node of WSN gets infected then automatically start to spread in the network. If nodes are strongly correlated the malware spreads quickly in the network. On the other hand, if nodes are weakly correlated the speed of malware spread is slow. A mathematical model is proposed for the study of malware propagation dynamics in WSN with combination of spatial correlation and epidemic theory. This model is based on epidemic theory with spatial correlation. The proposed model is Susceptible-Exposed-Infectious-Recover-Dead (SEIRD) with spatial correlation. We deduced the expression of basic reproduction number. It helps in the study of malware propagation dynamics in WSN. The stability analysis of the network has been investigated through proposed model. This model also helps in reduction of redundant information and saving of sensor nodes’ energy in WSN. The theoretical investigation verified by simulation results. A spatial correlation based epidemic model has been formulated for the study of dynamic behaviour of malware attacks in WSN.

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Comparison of Packet Delivery Fraction of On-demand Routing Protocol based on different Terrain-Area in MANET

Circulation in Computer Science ◽

10.22632/ccs-2017-mcsp039 ◽

2017 ◽

Vol MCSP2017 (01) ◽

pp. 38-41

Author(s):

Hari Shankar Sahu ◽

Rupanita Das

Keyword(s):

Wireless Network ◽

Routing Protocol ◽

Rapid Growth ◽

Ad Hoc Network ◽

Ad Hoc ◽

Wireless Ad Hoc Network ◽

Packet Delivery ◽

On Demand ◽

Telecommunication Technology ◽

Demand Routing

Now a days telecommunication technology leads to a rapid growth of number of users, these number of users nothing but number of nodes in MANET.A wireless ad hoc network is a decentralized type of wireless network. The mobility of nodes effect on the performance of the network. Due to mobility of nodes the link breaks number of times which effect on the packet delivery. Therefore to analyze the performance, packet delivery fraction (PDF)can be used. This paper describe the packet delivery fraction of on demand routing protocol AODV and DSR on different terrain areas using GLOMOSIM.

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Optical pulsed powered signal telemetry system for sensor network application

IEEE Transactions on Instrumentation and Measurement ◽

10.1109/19.50449 ◽

1990 ◽

Vol 39 (1) ◽

pp. 225-229 ◽

Cited By ~ 1

Author(s):

Y.S. Trisno ◽

P. Hsieh ◽

D. Wobschall

Keyword(s):

Sensor Network ◽

Telemetry System ◽

Network Application

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Measuring with JPerf and PsPing: Throughput and Estimated Packet Delivery Delay vs TCP Window Size & Parallel Streams

2021 7th International Conference on Advanced Computing and Communication Systems (ICACCS) ◽

10.1109/icaccs51430.2021.9441733 ◽

2021 ◽

Author(s):

Nakampe Sydney Sebopetse ◽

Chris R. Burger ◽

Mofolo Mofolo ◽

Albert A. Lysko

Keyword(s):

Window Size ◽

Packet Delivery ◽

Delivery Delay ◽

Parallel Streams

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Delay-Sensitive NOMA-HARQ for Short Packet Communications

Entropy ◽

10.3390/e23070880 ◽

2021 ◽

Vol 23 (7) ◽

pp. 880

Author(s):

Faisal Nadeem ◽

Mahyar Shirvanimoghaddam ◽

Yonghui Li ◽

Branka Vucetic

Keyword(s):

Markov Model ◽

Error Rate ◽

Multiple Access ◽

Time Slot ◽

Packet Error Rate ◽

Packet Delivery ◽

Delivery Delay ◽

Delay Sensitive ◽

Optimal Power ◽

Short Packet

This paper investigates the two-user uplink non-orthogonal multiple access (NOMA) paired with the hybrid automatic repeat request (HARQ) in the finite blocklength regime, where the target latency of each user is the priority. To limit the packet delivery delay and avoid packet queuing of the users, we propose a novel NOMA-HARQ approach where the retransmission of each packet is served non-orthogonally with the new packet in the same time slot. We use a Markov model (MM) to analyze the dynamics of the uplink NOMA-HARQ with one retransmission and characterize the packet error rate (PER), throughput, and latency performance of each user. We also present numerical optimizations to find the optimal power ratios of each user. Numerical results show that the proposed scheme significantly outperforms the standard NOMA-HARQ in terms of packet delivery delay at the target PER.

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