FILTERING OF NOISE INTERFERENCE IN VOIP CALL

Transcription

1 FILTERING OF NOISE INTERFERENCE IN VOIP CALL G.Nagalalli, M.Priyanka, R.Priyanka, J.Ramya, S.Nandhini Abstract: In this modern world, Communication plays vital role. Recent year s wireless communication has developed a lot, even though end users suffers a lot because of certain drawbacks.there is a real necessity in designing a system that should minimize the drawbacks and make a communication in effective manner for end users.there are several methods are used to resolve different kinds of drawbacks occurs in wireless communication, among them surrounding noise are reduced in VOIP call using filtering method. The project is implemented using LabVIEW software. Introduction: VOIP is increasingly becoming an alternative to the traditional PSTN (public switch telephone network) to send voice. The increase in the use of real-time services such as VOIP has increased the demand for QoS. The QoS can be measured in terms of throughput, jitter, delay etc. Quality of Service (QoS) is what determines if a technology can successfully deliver high value services such as voice and video. QoS referred as ability to control delay, packet loss, noise interference etc. A major development of VOIP was started in It was the introduction to the mass-market of VOIP services that utilize the existing broadband internet access, by which subscribers place and receive calls as same as traditional PSTN method. Because of its bandwidth efficiency and low cost implementation VOIP technology is being used by many corporate companies and institutions. Existing Methodology: Simulation Based Comparative Analysis of Voice Over Internet Protocol Over MPLS and Traditional IP Network The proposed system uses the MPLS and IP methodology. Here Voice Over Internet Protocol (VOIP) application is compared in MPLS and traditional IP network. OPNET simulator is utilized to model the both networks and the comparison is made depending on the metrics i.e. voice packet end-todelay, voice jitter, voice delay Variation, voice packet send and obtained. All Rights Reserved 293

2 In this system MPLS and IP methodology is used to compare different metrics of VOIP application it produce more traffic in packet sending and receiving. Traffic in the sense interference of environmental and surrounding noise. Proposed Method: After the literature survey, we came to a conclusion to implement the project with the following novelty ideas in it, Filtering of noise interference by designing new filter which is mainly used in VOIP call. Filter designing and developing VOIP call setup are done in LabView platform and the simulated output results are verified. PROCESSING FLOW: Step 1: Test signal (Real time signal). Step2: Test signal is send to the G- Code LabVIEW. Step3: In G-Code test signal is Filter Processed. Step 4: Filter output is implemented in VOIP call process. Step 5: Final Result are Simulated. The main aim is to design a filter to reduce the noise interference in VOIP application. As mentioned in the processing flow, total implementation of the project is splitted into four stages. In the first stage simple data is transfer reducing TCP/IP protocol from one host to another host. Similarly in the second stage voice signal is transferred from one system to another system. In third and fourth stages different kinds of filters are designed and tested to reduce the surrounding noise interference appeared along with voice signal transformation from one system to another system. All this process are executed in LabView platform in G- code format. LabVIEW Results: Filter outputs: Project All Rights Reserved 294

3 Conclusion and Future Scope: According to our proposed system we can able to reduce the noise interference in the VOIP call process. It is established using different kinds of filters like Low pass, High pass, Band pass, Band stop filters. The main aim is to design an efficient filter that should work best for filtering the noise. Initially we designed low pass filter using recorded signal and tested for the real time call process similarly all other filters also tested and its outputs are simulated. For Future enhancement the designed and tested adaptive filter are implemented in the VOIP call process. Since the progress in wireless communication system is non- stop so new things and new technology are being invented. As the technology grows day by day, we can imagine about the future in which we may occupy every place. The feature makes this system is All Rights Reserved 295

4 base for future systems. So we shall look forward for a bright and sophisticated world. advance foundation and research in computer IJAFRC vol 2, issue 5, May Reference: [1] Jyoti Aggarwal, Akansha D hall. Simulation based comparative analysis of VOIP over MPLS and traditional IP network. International journal of science, engineering and technology research IJSETR,Vol 4, issues 6, June [2] Monjur Ahmed, Alan T Litchfield, Shakil Ahmed, Adnan Mahmood. VOIP performance analysis over IPv4 and IPv6.International journal of computer networks and information security, 2014, 11, [3] SielayGebru, Prachikadam. Simulation based performance analysis and comparison of wired VOIP services over UDP and SCTP protocol. International journal of engineering trends and technology IJETT-volume 33 number 9-march [4] Priyanka Grover,Meenakshi Chawla. Performance analysis of VOIP code s with QoS parameters.international journal All Rights Reserved 296

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