Abstract

In wireless communication of fourth generation the expectation to integrate a diverse heterogeneous wireless network leads to a worldwide seamless mobility. For seamless mobility in heterogenous wireless networks, selection of best target network from available network is primary goal for handovers. To achieve this goal, we devise a target network selection algorithm to enhance the user satisfaction level.The method relies on a dwell time and prediction of received signal strength. By observing the Predicted received signal strength for a specified dwell time duration, a mobile node is able to decide whether to tigger the handoff process or not. Once the handoff process is triggered. Target network is selected depending upon a cost function. The Simulated results shows that, the proposed algorithm improves the handover performance by measuring the received signal strength accurately. It also selects the optimum target network quantitatively. Therefore, results obtained through our proposed algorithm are more accurate as compared to existing handover algorithms.

Highlights

  • Global Mobile Data Traffic Forecast by Cisco as shown in figure 1(a) predicts that mobile data traffic will grow nearly 10-fold by 2020 from 2015

  • A handoff failure can degrade the quality of service and can interrupt the ongoing communication

  • It is mandatory to provide the good quality of a network performance with best network

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Summary

Introduction

Global Mobile Data Traffic Forecast by Cisco as shown in figure 1(a) predicts that mobile data traffic will grow nearly 10-fold by 2020 from 2015. Emerging applications including video conferencing, telemedicine, interactive gaming and mobile education systems will demand high bandwidth. It means there will be a high rise in mobile data traffic in near future. The heterogeneous architecture of NGWN wireless networks offers variable coverage, continuous internet facility and QoS to mobile user. This heterogenity give rise to a problem of handoff failure and selection of desired network. A handoff failure can degrade the quality of service and can interrupt the ongoing communication. The multimedia applications like video streaming, VOIP, web browsing requires good quality of service. Quality can be define as reduction in handoff failue by triggering the handoff process at an appropriate time, reduction in interruption in the ongoing call during

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