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Sathiyapriya, T.
- An Investigation on the Impact of Weather Modelling on Various MANET Routing Protocols
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Authors
Affiliations
1 Department of ECE, Dr. MCET, Pollachi-642 003, Tamilnadu, IN
1 Department of ECE, Dr. MCET, Pollachi-642 003, Tamilnadu, IN
Source
Indian Journal of Science and Technology, Vol 8, No 15 (2015), Pagination:Abstract
The objective of the work is to analyze the impact of weather conditions on different types of MANET routing protocols. The influence of weather on the performances of MANET protocols such as AODV, STAR, RIP and ZRP are compared with and without considering weather conditions. Most of the works are not considering the effect of weather, when analysing the performances of MANET protocols. The simulations are carried out using Qualnet 5.0 with 100 nodes. The mobility model used for simulation is the Random waypoint model, where each node is moving independently to reach the destination with a random velocity. The velocity of each mobile node varies from 10 m/s to 50 m/s with the weather intensity of 1000 deg/m2. The performance metrics such as end to end delay, jitter, through put and packet delivery ratio are analysed and compared. The simulation results reveals that AODV provides better throughput and high packet delivery ratio compared to other protocols under with and without considering weather. STAR protocol yields good performance with respect to end to end delay and jitter under both conditions.Keywords
AODV, MANET, Mobility, STAR, Throughput, WeatherFull Text
- Design of Wide Band Compact Monopole Antenna for Wi-MAX Application
Abstract Views :180 |
PDF Views:4
Authors
Affiliations
1 Department of ECE, Dr. Mahalingam College of Engineering and Technology, Pollachi-642003, Tamilnadu, IN
1 Department of ECE, Dr. Mahalingam College of Engineering and Technology, Pollachi-642003, Tamilnadu, IN
Source
Programmable Device Circuits and Systems, Vol 7, No 3 (2015), Pagination: 88-90Abstract
This Paper presents the design of compact wide band monopole antenna a for Wi-MAX application. The proposed antenna radiates at a bandwidth which meet the requirements of Wi-MAX standards. It uses the easily available low cost FR4 substrate, which makes the antenna cost effective. The antenna structures consist of set of I shaped slits at appropriate locations to produce notch at 3.5GHz with wide bandwidth. The measured results reveal that the proposed compact wide band monopole antenna offers a wide bandwidth of 500 MHz, covering the entire 3.4 GHz-3.6 GHz WiMAX band.
Keywords
Monopole Antenna, WiMAX, ADS Software, I-Shaped Slit and FR4.
- Caesalpinia pulcherrima as Corrosion Inhibitor for Mild Steel in Acid Medium
Abstract Views :348 |
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Authors
Affiliations
1 Department of Chemistry, Govt. Arts College, Coimbatore, Tamilnadu-641018, IN
2 Department of Chemistry, Nirmala College, Coimbatore, Tamilnadu-641018, IN
1 Department of Chemistry, Govt. Arts College, Coimbatore, Tamilnadu-641018, IN
2 Department of Chemistry, Nirmala College, Coimbatore, Tamilnadu-641018, IN
Source
Asian Journal of Research in Chemistry, Vol 4, No 5 (2011), Pagination: 722-725Abstract
The inhibition efficacy of the extract of Caesalpinia pulcherrima for the corrosion of mild steel in 1N hydrochloric acid was investigated by weight loss, potentiodynamic polarization, electrochemical impedance spectroscopy (EIS) and scanning electron microscope (SEM) techniques. The results indicate that CP flowers serve as a good corrosion inhibitor of mixed type with efficiency as high as 95% at 0.6% inhibitor concentration.Keywords
Caesalpinia pulcherrima, Mild Steel, Acid Medium, Corrosion Inhibitor.- Design of Metamaterial Inspired High Gain Patch Antenna
Abstract Views :201 |
PDF Views:0
Authors
Affiliations
1 Department of Electronics and Communication Engineering, Dr. Mahalingam College of Engineering and Technology, IN
1 Department of Electronics and Communication Engineering, Dr. Mahalingam College of Engineering and Technology, IN
Source
ICTACT Journal on Communication Technology, Vol 10, No 1 (2019), Pagination: 1953-1957Abstract
This paper investigates the single band microstrip antenna loaded with meta-material. The main objective is to enhance the gain and directivity of the conventional microstrip patch antenna operating at X band. The Square SRR is acting as a metamaterial that is designed to exhibit negative properties at 10GHz. The parameters of unit cell metamaterial structure, simulated in CST Microwave Studio 2015, are extracted from S-parameters using Nicholson–Ross–Weir method. A unit cell SRR is iterated in various configurations and employed as an intermediate layer between patch and ground. By inserting a 6×4 array of metamaterial below the patch, it achieves Gain and directivity of 7.9dBi with 100% efficiency. The antenna resonates at 11.8 GHz with -24 dB reflection coefficient and also has good radiation characteristic. Being a high gain antenna resonates at X band, it can be used for satellite applications.Keywords
Metamaterial, Split Ring Resonators, X Band RADAR, Advanced Design System (ADS).References
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