Bandwidth Estimation in Network Probing Techniques Utilizing Min-Plus Algebraic Methods
Diagnosis of Anemia using Non-Invasive Anemia Detector through Parametrical Analysis
The Effectiveness of Jaya Optimization for Energy Aware Cluster Based Routing in Wireless Sensor Networks
Stress Analysis and Detection from Wearable Devices
Intrusion-Tolerant Sink Configuration: A Key to Prolonged Lifetime in Wireless Sensor Networks
Channel Estimation and It’s Techniques: A Survey
Impact of Mobility on Power Consumption in RPL
FER Performance Analysis of Adaptive MIMO with OSTBC for Wireless Communication by QPSK Modulation Technique
Implementation of Traffic Engineering Technique in MPLS Network using RSVP
Performance Evaluation of Advanced Congestion Control Mechanisms for COAP
DGS Based MIMO Microstrip Antenna for Wireless Applications
A Review on Optimized FFT/IFFT Architectures for OFDM Systems
Balanced Unequal Clustering AlgorithmFor Wireless Sensor Network
HHT and DWT Based MIMO-OFDM for Various ModulationSchemes: A Comparative Approach
Study and Comparison of Distributed Energy Efficient Clustering Protocols in Wireless Sensor Network: A Review
Diagnosis of Anemia using Non-Invasive Anemia Detector through Parametrical Analysis
In this paper, different heuristics for cross-layer optimization for heterogeneous ad-hoc network are reviewed and analyzed. Up to a large extent safety issues and traffic congestion in daily life can be resolved by integrating information and communication methodology into transportation infrastructure and vehicles. High mobility, congestion scalability, dynamic behavior and self-organization makes it stiff to deployment in real time scenario. Performance of the different routing protocols in different scenarios are observed using different simulation tools by different authors in literature. It has been observed from the study that transmission range, obstacles, speed, scalability and road condition influence the performance of different protocols. Quality of Service metrics parameters like speed and mobility of node influence the performance of network. For enhancement of the network performance in real time scenario latest communication technology and infrastructure plays an important role. Packet delivery ratio, goodput and throughput of heterogeneous ad hoc network can be improved by using optimized link prediction heuristic observed by simulation.
A simple circular patch antenna with notch ground and arc patch is proposed in this paper. Antenna is fed with Coplanar Waveguide (CPW) feed. In this CPW feed ground exists only on top of the substrate and either side of the feed strip. Ground is notched at either top corner to achieve multiband frequency. A small arc gap is created between the feed strip which is attached to arc patch and the circular radiating patch known as capacitive loading to achieve WLAN 5.2/5.8GHz band. Antenna is fabricated on FR4 substrate having dimension (40mmx30mmx1.6mm).Relative dielectric constant of the substrate is 4.4. The proposed antenna covers multiple frequency bands with impedance bandwidth (S11 < −10dB) of 20.4% from 2.2-2.7 GHz, 61% from 4.1-7.7 GHz, and 25.5% from 8.9-11.5 GHz. These operating bands are suitable for 2.4GHz / 5.2GHz / 5.8GHz Wireless local area network (WLAN) bands and X-band applications. Effects of key design parameters such as radius of the patch and length and width of arc have been investigated. Return loss, VSWR, Radiation pattern and gain characteristics of the antenna are investigated. Antenna exhibits positive gain and good radiation characteristics over these frequency ranges. There is a good agreement between the measured and simulation results
Multi-hop network is a wireless network that is formed for a temporary purpose. Unlike wired network, no centralized control over the network. So, all the devices act as both node and router. Nodes have the property of moving with certain speed. Due to this property, there is a dynamic change in the connections among nodes. At any time, there is a change in number of nodes and their speed of movingin the network. Network size is the number of nodes participating in the networks. It has a noticeableinfluence on the network scalabilityandconnectivity. These two properties have a great impact on MANET. This paper makes an effort to study the influence of one of the most important parameters i.e. network size on the performance of MANET while implementing LANMAR routing protocol.
It has already been found in the literature that Wireless Sensor Networks (WSNs) is the emerging and attractive topic of the research all around the world in recent years and have been widely applicable in the various application of engineering. The radios are employed in WSNs with only simple digital modulation techniques such as Amplitude Shift Keying (ASK), On-Off Key (OOK) and Frequency Shift Key (FSK). The lifetime of WSNs is more important factor, therefore, energy efficient communication protocol is required in order to enhance the life of WSNs. Considering this fact in the mind, in this paper, a communication protocol called as RBNSiZeComm (Redundant Binary Number Silent through Zero digit Communication) protocol has been implemented. RBNSiZeComm is basically based on a non-coherent detection and uses Redundant Binary Number (RBN) representation coupled with silent periods for communicating the digit zero. The presented communication technique (RBNSiZeComm) has been compared with some communication schemes available in the literature. RBNSiZeComm proves itself as a high energy efficient technique for data transmission. A hybrid modulation scheme using FSK and ASK with non-coherent detection based receiver has been used for this protocol. This protocol is very beneficial for the applications involving low power wireless networks for 58% to 95 % energy saving.
Now a days it is required to have techniques and systems which detect and prevent the crops from being affected by different diseases.Agriculture environment is dynamic entity and changing continuously. Ground water depletion, soil erosion, attack of new pest and diseases, fragmentation of land, rural-urban migration and power supply availability for farming are some of the new challenges presently being faced in the agricultural field. In the field conditions at the farm in terms of Temperature, Soil Moisture, Humidity and Water level are acquired with the help of corresponding sensors and the real time values of the parameters is stored on the cloud. The Values of the parameters is communicated to the cloud with the help of NodeMCU Microcontroller Unit which is the main component of the system which acts as a gateway between field and the Internet. This system helps the farmer in accessing the field parameters on the go, thus promotes smart Agriculture.