Thursday, 15 January 2015

TRAFFIC SPLITTING IN MULTIPATH WIRELESS NETWORK


Ms.E.Pandiyammal1, Mr.P.N.Karthikayan2
1PG student- Department of CSE - Vellammal college of Engineering and technology, Madurai, Tamilnadu, India.
2Assistant Professor - Department of CSE- Vellammal college of Engineering and technology, Madurai, Tamilnadu, India.
In network, multiple paths are existing between source and destination. Source splits the traffic among its entire available path. But how we achieve the lowest transmission rate per unit time is a problem here. If any traffic terminus between two nodes then consumes the reverse path for packet transmission. This type of packet transmission method is called as “REVERSE CARPOOLING”. And also the reverse path is called as “HYPERLINKS”. In reverse carpooling technique, use the longer paths at lowest cost by conveying a hyperlink capacity to each node. Conversely there is a strange situation among sources (i.e.) if there is traffic in both directions of a shared path, deliberate as a problem of routing with network coding. By conveying a hyperlink capacity, permitting sources to split their traffic selfishly in a scattered fashion, and then altering the hyperlink capacity based on user actions. Additionally, each hyperlink has a scheduling restriction in terms of the maximum number of transmissions allowed per unit time.

 

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EXPERIMENTAL INVESTIGATION AND PROPERTIES OF REACTIVE POWDER CONCRETE




P.B.SIVA SANKAR a, B.VENKATESAN b
a Assistant professor, Department of Civil Engineering, Vickram college of Engineering, Madurai, India
b Assistant professor, Department of Civil Engineering, University College of Engineering, Ramanathapuram, India



     Reactive powder concrete (RPC) is the term has been used to describe a fibre reinforced , super plasticized, silica fume- cement mixture with reduced water-cement ratio, characterized by the presence of very fine quartz sand instead of ordinary aggregate. In this investigation the mechanical property performance of RPC has been investigated by varying the water dosage, silica fume dosage, and with addition of 1%, 2%, 3%, 4%and 5% crimped steel fibres.RPC have also been investigated under different combinations of normal water curing, hot water curing and high temperature curing, after this 7 days of curing regimes, the specimens were cured in water until the testing. Test results indicate that compressive strength of RPC increases significantly after heat treating compared to the standard water curing. Temperature, Rate of heating and Rate of curing also influenced the mechanical performance of RPC considerably.

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Tuesday, 13 January 2015

A REVIEW ON SCALABLE DIVIDEND SERVICE INTEGRITY FOR SOFTWARE-AS-A-SERVICE CLOUDS



P.Keerthiga, S.Rajeswari

1PG Student STET Women’s college, mannargudi
2Professor of cs department, STET Women’s college, mannargudi

Software-as-a-service (SaaS) cloud systems enable application service providers to deliver their applications via massive cloud computing infrastructures. However, due to their sharing nature, SaaS clouds are vulnerable to malicious attacks. In this paper, we present IntTest, a scalable and effective service integrity attestation framework for SaaS clouds. IntTest provides a novel integrated attestation graph analysis scheme that can provide stronger attacker pinpointing power than previous schemes. Moreover, IntTest can automatically enhance result quality by replacing bad results produced by malicious attackers with good results produced by benign service providers. We have implemented a prototype of the IntTest system and tested it on a production cloud computing infrastructure using IBM System S stream processing applications. Our experimental results show that IntTest can achieve higher attacker pinpointing accuracy than existing approaches. IntTest does not require any special hardware or secure kernel support and imposes little performance impact to the application, which makes it practical for large-scale cloud systems.
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