The Analysis of Wireless Channel in the Workshop of Chemical Water Treatment in Power Plant

As the performance of the wireless sensor networks is sensitive to the environment of the application, the analysis of wireless channel is carried out in the workshop of the chemical water treatment in power plant. With the power of noise and received signals sampled, the path-loss exponent γ is derived to establish the model of the wireless channel. To meet the requirement of the performance of wireless communication, such as a given bit error rate (BER), the upper bound of the distance between transmitter and receiver is also presented. At last, the conclusion is given.

Download Full-text

Performance Effects of Current Consumption on Radio Receiver Bit Error Rate in IEEE 802.15.4 for Wireless Sensor Networks

INTERNATIONAL JOURNAL OF COMPUTERS & TECHNOLOGY ◽

10.24297/ijct.v13i9.2388 ◽

2014 ◽

Vol 13 (9) ◽

pp. 4868-4880

Author(s):

Sukhvinder Singh Bamber

Keyword(s):

Wireless Sensor Networks ◽

Sensor Networks ◽

Bit Error Rate ◽

Error Rate ◽

Ieee 802.15.4 ◽

Performance Enhancement ◽

Initial Energy ◽

Wireless Sensor ◽

Radio Receiver ◽

Sleep Mode

This paper investigates the radio receiver Bit Error Rate (BER) at different types of devices in IEEE 802.15.4 Wireless Sensor Networks (WSNs) for the different current draw parameters: transmit mode, receive mode, sleep mode and idle mode keeping other parameters like: initial energy and power supply same for all motes; Clearly proving that if BER is to be taken into consideration for the performance enhancement then Z1 mote should be implemented in IEEE 802.15.4 WSNs as they produce minimal BER.Â

Download Full-text

METHODS OF MODELING WIRELESS SENSOR NETWORKS TOPOLOGY CONSIDERING INTERNODAL INTERFERENCE

VESTNIK OF ASTRAKHAN STATE TECHNICAL UNIVERSITY SERIES MANAGEMENT COMPUTER SCIENCE AND INFORMATICS ◽

10.24143/2072-9502-2020-3-34-44 ◽

2020 ◽

Vol 2020 (3) ◽

pp. 34-44

Author(s):

Vladimir Vasilevich Fedorenko ◽

Vladimir Valerevich Samoylenko ◽

Daria Vladimirovna Alduschenko ◽

Igor Vladimirovich Emelyanenko

Keyword(s):

Wireless Sensor Networks ◽

Sensor Networks ◽

Network Topology ◽

Bit Error Rate ◽

Error Rate ◽

Frequency Separation ◽

Wireless Sensor ◽

Reliability Indicator ◽

Useful Signal ◽

The Impact

The article presents the analysis of developing methods of wireless sensor networks (WSNs) topologies based on a graph structure. It indicates the prevalence of tolerance criteria for de-scribing the links between nodes, for example, the limiting distance of radio communication, a sufficient ratio of signal/energy (interference + noise). To consider the impact of inter-node interference on the network topology it is proposed to use the permissible values of bit error probabilities or erasing an information packet in case of distortion of at least one its elements as a criterion for stable communication. The algorithm for calculating an analytical model of internode communication channel is presented to evaluate the effect of intra-network additive and multiplicative noise on the reliability indicator of incoherent message reception in the form of a bit error rate. Expression for the coefficient of structural interaction of the received signal and the interference complex is obtained, which allows considering the dependence of bit error rate on the energy components of individual interference at the receiver input, frequency separation value of a signal and values of each disturbance, their phase shifts and the duration of the information bit. There has been considered practical application of the WSNs topology modeling technique for the internode communication channels with Rice fading of a useful signal and Rayleigh fading of an intra-network interference complex (a case study of using CC2500 modems as part of WSNs nodes). As a result of analysis, there have been determined the relations between nodes, for which the bit error rates do not exceed the allowable value established by requirements for channel capacity and the length of information packets. The presented modeling approach proves the possibility of improving the network topology due to developing the internode links by redistributing the frequency resource between the nodes or adjusting the operation modes of the modems.

Download Full-text

Performability of Retransmission of Loss Packets in Wireless Sensor Networks

Computer and Information Science ◽

10.5539/cis.v12n2p71 ◽

2019 ◽

Vol 12 (2) ◽

pp. 71

Author(s):

Imeh Umoren ◽

Daniel Asuquo ◽

Onukwugha Gilean ◽

Mfon Esang

Keyword(s):

Wireless Sensor Networks ◽

Sensor Networks ◽

Error Rate ◽

Packet Loss ◽

Forward Error Correction ◽

Fuzzy Logic Controller ◽

Wireless Channel ◽

Wireless Sensor ◽

Delivery Ratio ◽

Qos Provisioning

Latest progress in wireless communication technology has enabled the development of low-cost sensor networks with major concern on quality of service (QoS) provisioning. Wireless sensor networks (WSNs) can be adopted in various application domains but each use is likely to pose peculiar technical issues. Basically, we demonstrate that congestion, packet loss and delay have strong influence on the performance of WSNs. In order to implement a realistic sensor network policy to resolve the problem of data delay and avoidance of collisions that lead to packet losses, we develop a system that guarantees QoS in WSNs using Fuzzy Logic Controller (FLC) for sensitivity analysis of the effect of adaptive forward error correction (AFEC). The AFEC approach improves the throughput by dynamically tuning FEC subject to the nature of wireless channel loss thereby optimizing throughput, sensor power utilization, while minimizing traffic retransmission, bit error rate (BER), and energy consumption. Basically, parameters such as packet delivery ratio, packet loss, delay, error rate, and throughput are appraised. The system has a spread procedure which is able to schedule the transmission of the nodes in order to have a data flow that converges from the furthest nodes toward the fusion centre. The key benefit of the scenario showed that, after extensive simulation using realistic field data, the procedure permits a practical approach to obtaining optimal solution to loss packets retransmission problem in WSNs giving a strong improvement on QoS provisioning.

Download Full-text

Efficient cooperative image transmission in one-way multi-hop sensor network

International Journal of Electrical Engineering Education ◽

10.1177/0020720918816009 ◽

2018 ◽

Vol 57 (4) ◽

pp. 321-339 ◽

Cited By ~ 1

Author(s):

Bilal Al-Hayani ◽

Haci Ilhan

Keyword(s):

Wireless Sensor Networks ◽

Wavelet Transform ◽

Sensor Networks ◽

Image Quality ◽

Bit Error Rate ◽

Error Rate ◽

Image Transmission ◽

Wireless Sensor ◽

Discrete Wavelet ◽

Relay Nodes

The challenging task while transmitting the high-quality images over the wireless sensor networks is to achieve the higher throughput, minimum bit error rate without compromising the image quality. As the sensor nodes have the limited processing power, designing energy efficient image transmission is another challenge in this research. This paper proposed a novel method of cooperative image transformation from the transmitter to the receiver for wireless sensor networks. We designed the methods for multi-hop one-way relayed cooperative communication model for wireless sensor networks. We believe that the cooperative communication helps to improve the efficiency of image transmission. The proposed approach focused on efficient relayed image transmission through wireless channels with optimum image quality and bit error rate performances. First, lightweight image quality improvement method was proposed at both transmitter and receiver end as images captured under various illumination conditions. Second, the proposed compressive sensing was performed using the approximation coefficient of 2D discrete wavelet transform. We utilized the wavelet denoising advantage by presenting the hybrid thresholding function. And third, use of decode–forward method at relay nodes to perform the task of decode and forward received image data block. The compressed approximation component of 2D discrete wavelet Transform is further used to apply inverse fast Fourier transform and then in modulation using quadrature phase shift keying to transmit over additive white Gaussian noise channel to relay nodes as per the standard orthogonal frequency-division multiplexing model. The simulation results claim the performance efficiency against the state-of-art methods based on mean square error, peak signal-to-noise ratio, and bit error rate.

Download Full-text

Performance Analysis of OQPSK Signals with Bi-Kappa Noise for Wireless Sensor Networks

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.330.957 ◽

2013 ◽

Vol 330 ◽

pp. 957-960

Author(s):

Qiao Ling Du ◽

Zhi Rui Wang ◽

Yu Pei ◽

Yi Ding Wang

Keyword(s):

Wireless Sensor Networks ◽

Sensor Networks ◽

Performance Analysis ◽

Error Rate ◽

Fading Channel ◽

Rayleigh Fading ◽

Symbol Error Rate ◽

Wireless Sensor ◽

Channel Simulation ◽

Simulation Results

This paper investigates the performance analysis of OQPSK in HF band for wireless sensor networks. An analytical model for getting symbol error rate (SER) is given in presence of Bi-Kappa noise in HF band. And the SER of OQPSK is given in AWGN and Rayleigh fading channel. Simulation results HF noise as Bi-Kappa noise should be investigated in HF band for WSN.

Download Full-text

Measuring and estimating the propagation path loss and shadowing effects for Marine Wireless Sensor Networks at 5.8 GHZ

2012 20th Telecommunications Forum (TELFOR) ◽

10.1109/telfor.2012.6419212 ◽

2012 ◽

Cited By ~ 10

Author(s):

J. C. Reyes-Guerrero ◽

Gordan Sisul ◽

Luis A. Mariscal

Keyword(s):

Wireless Sensor Networks ◽

Sensor Networks ◽

Path Loss ◽

Wireless Sensor ◽

Propagation Path ◽

Shadowing Effects

Download Full-text

An Energy-Balance Based Distributed Topology Control Algorithm for Wireless Sensor Networks

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.490-495.1392 ◽

2012 ◽

Vol 490-495 ◽

pp. 1392-1396 ◽

Cited By ~ 3

Author(s):

Chu Hang Wang

Keyword(s):

Wireless Sensor Networks ◽

Energy Consumption ◽

Sensor Networks ◽

Topology Control ◽

Control Algorithm ◽

Path Loss ◽

Network Connectivity ◽

Premature Death ◽

Residual Energy ◽

Wireless Sensor

Topology control is an efficient approach which can reduce energy consumption for wireless sensor networks, and the current algorithms mostly focus on reducing the nodes’ energy consumption by power adjusting, but pay little attention to balance energy consumption of the whole network, which results in premature death of many nodes. Thus, a distributed topology control algorithm based on path-loss and residual energy (PRTC) is designed in this paper. This algorithm not only maintains the least loss links between nodes but also balances the energy consumption of the network. The simulation results show that the topology constructed by PRTC can preserve network connectivity as well as extend the lifetime of the network and provide good performance of energy consumption.

Download Full-text