Informatics Publishing Limited

S. Matilda ¹, B. Palaniappan ²

Affiliations
1 Department of Information Technology, IFET College of Engineering, Tamil Nadu, IN
2 Department of Computer Science and Engineering, Annamalai University, Tamil Nadu, IN

Abstract

Video streaming is gaining importance, with the wide popularity of multimedia rich applications in the Internet. Video streams are delay sensitive and require seamless flow for continuous visualization. Properly designed buffers offer a solution to queuing delay. The diagonally opposite QoS metrics associated with video traffic poses an optimization problem, in the design of buffers. This paper is a continuation of our previous work [1] and deals with the design of buffers. It aims at finding the optimum buffer size for enhancing QoS offered to video traffic. Network-centric QoS provisioning approach, along with hybrid transport layer protocol approach is adopted, to arrive at an optimum size which is independent of RTT. In this combinational approach, buffers of routers and end devices are designed to satisfy the various QoS parameters at the transport layer. OPNET Modeler is used to simulate environments for testing the design. Based on the results of simulation it is evident that the hybrid transport layer protocol approach is best suited for transmitting video traffic as it supports the economical design.

Keywords

Buffer Size, GoP (Group of Pictures), Hybrid Transport Layer Protocol, QoS (Quality of Service).

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V. Ramya ¹, B. Palaniappan ¹, K. Karthick ¹

Affiliations
1 Dept of CSE, Annamalai University, Chidambaram, IN

Abstract

In today's world safety and security plays an important role, hence we tend to provide a good safety and security system while travelling. Vehicles are important in today's fast-paced society. Hence, acquiring a vehicle nowadays is considered a necessity, compared to the past where it was considered a luxury. In this thriving society, more and more vehicles are produced to meet the increasing demands of people and businesses from all corners of the world. Here comes the necessity to provide more and more safety and security features to them. Hence this project aims to design an embedded system for vehicle cabin safety and security by modifying and integrating the existing modules. This monitors the level of the toxic gases such as CO, LPG and alcohol inside the vehicle and provides alert information in the form of alarm during the critical situations. And also send SMS to the authorised person through the GSM. An IR Sensor is used to detect the static obstacle in front of the vehicle and the vehicle gets stopped if any obstacle is detected. This may avoid accidents due to collision of vehicles with any static obstacles.

Keywords

ADC, GSM, Embedded System, Microcontroller, Sensors.

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L. R. Arvind Babu ¹, B. Palaniappan ¹

Affiliations
1 Department of CSE, Annamalai University, Tamilnadu, IN

Abstract

Linear Programming Problems are mathematical models used to represent real life situations in the form of linear objective function and constraints various methods are available to solve linear programming problems. When formulating an LP model, systems analysts and researchers often include all possible constraints although some of them may not be binding at the optimal solution. The presence of redundant constraints does not alter the optimum solution(s), but may consume extra computational effort. Redundant constraints identification methods are applied for reducing computational effort in LP problems. But accuracy of the LP problems goes down due to this reduction of loops and constraints. To achieve optimality in accuracy and also in computational effort, we propose an algorithm, called, hybrid algorithm, it trains the constraint and parameter before applying the formal methodology.

Keywords

Linear Programming, Redundant Constraints, Load Forecasting, Training Parameters.

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