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Raja V.B.,SSCET | Shanmugam V.,SSCET | Narrayani R.,Narasus Sarathy Institute of Technology
2013 International Conference on Energy Efficient Technologies for Sustainability, ICEETS 2013 | Year: 2013

This paper reviews the past efforts of solar assisted-single effect vapour absorption cooling system for buildings. Besides the review of the past theoretical and experimental investigations of solar absorption cooling systems, some new ideas were introduced to reduce heat transfer loss to generator and thus to increase COP to get effective cooling. An experimental setup of vapour absorption cooling system was designed, developed and constructed. In order to monitor and analyze the performance of the cooling system it is necessary to collect the operation parameters of the system. In this regard the technique of visual instruments and the characteristics of cooling system is combined using national instrument product LabVIEW. © 2013 IEEE.


Boopathi Raja V.,Narasus Sarathy Institute of Technology
Renewable and Sustainable Energy Reviews | Year: 2012

Solar energy is an alternative energy source for cooling systems where electricity is demand or expensive. Many solar assisted cooling systems have been installed in different countries for domestic purpose. Many researches are going on to achieve economical and efficient thermal systems when compared with conventional systems. This paper reviews the past efforts of solar assisted-single effect vapour absorption cooling system using LiBr-H 2O mixture for residential buildings. Solar assisted single-effect absorption cooling systems were capable of working in the driving temperature range of 70-100 °C. In this system LiBr-H 2O are the major working pairs and has a higher COP than any other working fluids. Besides the review of the past theoretical and experimental investigations of solar single effect absorption cooling systems, some new ideas were introduced to minimize the capital and operational cost, to reduce heat loss from generator and thus to increase COP to get effective cooling. © 2012 Elsevier Ltd.


Senthil Kumar R.,Narasus Sarathy Institute of Technology
International Review on Computers and Software | Year: 2014

Mobile ad hoc networks (MANET) also as called auto configure network, in which mobile devices are connected as a wireless node. Due to changes in topology and mobility in MANET, it is suitable to use in environment that need of on fly set-up. The design of energy efficient cluster based on-demand routing protocol and to increasing the life time of node it is a very difficult task in mobile ad hoc networks. Ad hoc On-demand Distance Vector Routing Protocol (AODV) for MANET were employed on the route discovery process to establish routes between two mobile nodes. One of the most important issue is the link break occurred by the nodes due to mobility in ad hoc routing protocol. In a network when nodes establishing the connection between the nodes, they utilize more energy in route discovery process, then the node will be out of energy. In this paper, we proposed a new idea to Minimizing the Route Rediscovery Process based on cluster Techniques (CBMRRP) by scheming the source node RREQ packet to select the more stable route i.e. cluster head selection. The proposed protocol has two schemes, first one is the selection of cluster heads based on Received Signal Strength(RSS) to minimizing the route rediscover process and the route optimization of flooding process, based on Time-to-Live (TTL) value,and the second one is by reducing route rediscovery process solution to accomplish the link failure. The analytical experiment was done by both probability and correlation techniques and simulation was done on ns-2.34 platform and compared with the original AODV. By verifying the result, the effectiveness and network performance of Quality of Service (QoS) are improved. © 2014 Praise Worthy Prize S.r.l. - All rights reserved.


Senthil Kumar R.,Narasus Sarathy Institute of Technology | Sureshkumar C.,k-Technology
Journal of Theoretical and Applied Information Technology | Year: 2014

Mobile ad hoc networks (MANET) are characterized by dynamic topology without any static infrastructure. Now a day's mobile devices are connected as a wireless node. Due to changes in topology and mobility in MANET, it is suitable to use in environment that need of on fly set-up. The design of energy efficient on-demand routing protocol is a very difficult task in mobile ad hoc networks. Ad hoc On-demand Distance Vector Routing Protocol (AODV) for manet were employed on the route discovery process to establish routes between two mobile nodes. The link break problem may be occurring by the nodes due to mobility in ad hoc routing protocol. In a network when nodes establishing the connection utilize more energy in route discovery process, then the node will be out of energy. In this paper, we proposed a novel method to Minimizing the Route Rediscovery Process based Protocol (MRRP) by scheming the RREQ packet to select the more stable route and reduce the link break. The proposed protocol has two schemes, Received Signal Strength(RSS) based to minimizing the route rediscover process and the optimization of flooding process, based on Time-to-Live (TTL) value, reducing route rediscovery process solution to accomplish the link failure. Simulation was done on ns-2.34 platform and compared with the original AODV. By verifying the results, it improves the effectiveness and network performance of Quality of Service (QoS). © 2005 - 2014 JATIT & LLS. All rights reserved.


Kumar R.S.,Narasus Sarathy Institute of Technology | Kamalakkannan P.,Government of Tamilnadu
4th International Conference on Advanced Computing, ICoAC 2012 | Year: 2012

Mobile ad hoc networks is a self organizing wireless networks for mobile devices. It does not require any fixed infrastructure due to no wired backbone. It is suitable to use in environment that have a need of on the fly set-up. Every host is a router and packet forwarder. Each node may be mobile, and topology changes frequently and unpredictably due to the arbitrary mobility of mobile nodes. This aspect leads to frequent path failure and route rebuilding. Routing protocol development depends on mobility management, efficient bandwidth and power usage which are critical in ad hoc networks. In this paper, personalized Ad hoc On demand Distance Vector (RAODV) algorithm to reduce the link break scheme for mobile ad hoc networks. This present approach reduces packet loss and finds optimized route by taking into consideration of bandwidth, delay which results by improvement of quality of service. The performance analysis and simulation are carried out to evaluate network performance using network simulator NS-2 based on the quantitative basic parameters like throughput, delay in term of number of nodes and various mobility rates. A simulation result was during the comparison of AODV protocol with RAODV the probability of link break has been decreases in RAODV considering when various pause times and increases number of nodes. © 2012 IEEE.


Poonguzhali M.,Narasus Sarathy Institute of Technology
2012 International Conference on Computer Communication and Informatics, ICCCI 2012 | Year: 2012

Providing efficient resource allocation in the grid computing is a major task. In this paper, a simple and proficient fuzzy based resource allocation algorithm is proposed that not only provides efficient allocation of resources but also ensures high utilization of the resources which are dynamic. The proposed technique constitutes of three different stages namely classification of grid resources, generation of fuzzy rules, and resource allocation based on those fuzzy rules. In the first stage, the grid resource is classified on the basis of dwelling time. In the second stage, the fuzzy rules are developed to allocate the resources to the particular job. In the third & final stage of the technique, the resources are allocated to the submitted jobs based on the generated fuzzy rules. The performance of the proposed algorithm is evaluated on the basis of utilization, failure rate and makespan, and is compared with conventional scheduling algorithms like First Come First Serve (FCFS), Round robin and Random. The results shows that the proposed fuzzy based resource allocation of resource and thereby improving the performance. © 2012 IEEE.


Bhuvaneswari G.,Bharathiar University | Bhuvaneswari G.,Narasus Sarathy Institute of Technology | Radjarejesri S.,Salem College
International Journal of ChemTech Research | Year: 2015

Our current research involves Cadmium Sulphide (CdS) synthesized by chemical precipitation method using green materials. Papaya peel extract was used as capping agent for the preparation of CdS quantum dots (QD). High Resolution Transmission Electron Microscopy (HRTEM) and X-ray diffraction pattern (XRD) were used to study the morphology, distribution, crystallinity and size. The reports revealed that the CdS QD were formed with cubic phase. The size of the CdS QD was found to be 2.7 nm using Scherrer formula. Existence of blue shift in UV-Vis spectroscopy reveals the formation of nanoparticle. © 2015, Sphinx Knowledge House. All rights reserved.


Auxilia M.,Sathyabama University | Raja K.,Narasus Sarathy Institute of Technology
2012 International Conference on Radar, Communication and Computing, ICRCC 2012 | Year: 2012

Ensuring data security in cloud is an important research issue. Data access Control isan efficient way for guaranteeing the data security. Data access cannot be controlled safely and efficiently, unless access decision takes semantic relationship among different entities in the access control domain. Accessdecisions made with considering entities in isolation, rather than taking their interrelationships into account may result in security violations. Traditional access control models like MAC, DAC, RBAC fails to consider interrelationships among access control entities. In this paper, we propose a Semantic Based AccessControl model, which considers relationships among the entities in all domains of access control namely Subject(user), Object(Data/resource), Action(select, open, read, write) and so on. We also had shown how to reduce the semantic interrelationships into subsumption problem. This reduction facilitates the propagation of policies in these domains and also enhances time and space complexity of access control mechanisms. © 2012 IEEE.


Kumar R.S.,Narasus Sarathy Institute of Technology | Kamalakkannan P.,Government of Tamilnadu
Proceedings of the 2013 International Conference on Pattern Recognition, Informatics and Mobile Engineering, PRIME 2013 | Year: 2013

Mobile an ad hoc network is a self organizing wireless network for built spontaneously to connect the mobile devices. It does not require any fixed infrastructure due to no wired backbone. It is suitable to use in environment that have need of on the fly set-up. Every host is a router and packet forwarder. Each node may be mobile, and topology changes frequently and unpredictably due to the arbitrary mobility of mobile nodes. This aspect leads to frequent path failure and route rebuilding. Routing protocol development depends on mobility management, efficient bandwidth and power usage which are critical in ad hoc networks. Cross layer scheme is the new method for wireless mobile devices become to increase the capacity network. In this paper, proposed a new cross layer scheme based algorithm to reduce the link break in MANETs. This present three schemes to reduce packet retransmission ratio by distribution signal information between PHYSICAL LAYER and MAC LAYER, and to discuss the frequent route failures in MANET by identify shortly to be broken links instead of prediction of received signal power, To find optimized route maintenance by taking into consideration of Bandwidth, Delay which results by improvement of QoS. The performance of cross layer process for all the schemes simulation are carried out to evaluate network performance using network simulator NS-2 based on the basic parameters like Throughput, packet delivery ratio(PDR) in term of number of nodes when various pause times. © 2013 IEEE.


Poonguzhali M.,Narasus Sarathy Institute of Technology | Shanmugavel S.,Anna University
Journal of Computer Science | Year: 2013

One of the main challenges in Grid computing is efficient allocation of resources (CPU-hours, network bandwidth) to the tasks submitted by users. In our previous work a technique to allocate resources in a grid environment using predicted data has been proposed. We propose utilization of the predicted data the resources were classified into three types; they are permanent resources, semi-permanent and sporadic resources. These types of resources may become available for a time that is either higher than the dwelling time or lower than the dwelling time in a grid environment. As the nature features are not known in such classification and then allocation mechanism, the performance cannot be increased further. In order to avoid such problem, in this study, a prediction model and an allocation factor are introduced. These parameters are determined for the sporadic type and semi-permanent type of resources and they are used in the fuzzybased resource allocation mechanism. The incorporation of these parameters in the resource allocation leads to a remarkable resource utilization rate and makespan. This can be observed from the simulation and comparative results. From the results, it can be said that the proposed resource allocation mechanism has proved the performance in a dynamic environment. © 2013 Science Publications.

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