40120140506009 2

46 %
54 %
Information about 40120140506009 2
Technology

Published on September 24, 2014

Author: iaeme

Source: slideshare.net

Description

The aim of next generation wireless network (NGWN) is to integrate different wireless
access technologies such as WLAN, WiMAX, UMTS etc., each with its own characteristics, into a
common IP-based core network to provide mobile user with seamless connectivity. One of the major
issues for the converged heterogeneous networks is to provide seamless connectivity with QoS
support. In this paper we simulated various wireless networks (WLAN, WiMAX and UMTS) for
various applications and evaluated their performance as individual as well as in integrated mode

International INTERNATIONAL Journal of Electronics and JOURNAL Communication Engineering OF ELECTRONICS & Technology (IJECET), AND ISSN 0976 – 6464(Print), ISSN 0976 – 6472(Online), Volume 5, Issue 6, June (2014), pp. 67-74 © IAEME COMMUNICATION  ENGINEERING & TECHNOLOGY (IJECET) ISSN 0976 – 6464(Print) ISSN 0976 – 6472(Online) Volume 5, Issue 6, June (2014), pp. 67-74 © IAEME: http://www.iaeme.com/IJECET.asp Journal Impact Factor (2014): 7.2836 (Calculated by GISI) www.jifactor.com 67  IJECET © I A E M E PERFORMANCE EVALUATION OF QUALITY OF SERVICE IN HETEROGENEOUS NETWORKS USING OPNET MODELLER Vijay Verma1, Silki Baghla2 1Research Scholar, ECE Department, JCDM College of Engineering, Sirsa, INDIA 2Astt. Prof., ECE Department, JCDM College of Engineering, Sirsa, INDIA ABSTRACT The aim of next generation wireless network (NGWN) is to integrate different wireless access technologies such as WLAN, WiMAX, UMTS etc., each with its own characteristics, into a common IP-based core network to provide mobile user with seamless connectivity. One of the major issues for the converged heterogeneous networks is to provide seamless connectivity with QoS support. In this paper we simulated various wireless networks (WLAN, WiMAX and UMTS) for various applications and evaluated their performance as individual as well as in integrated mode. Keywords: WLAN, WiMAX, UMTS, QoS, NGWN. INTRODUCTION Now a days telecommunication services such as video on demand, music down- load, video streaming, video conferencing and VoIP are becoming part of user’s daily activities. These applications demand high quality service, particularly for voice and real time sessions. So it is very important to increase the quality of data for telecommunication [2]. In wireless technologies such as 3G, WLAN, WiMAX etc. offer variety of services. They are developed with different standards and provide different area of coverage and data rates [3]. VoIP applications are being widely used in today's networks challenging their capabilities to provide a good quality of experience level to the users [4]. Now days the heterogeneous networks are widely used in telecommunication. The mobility in heterogeneous networks for any mobile device requires seamless connectivity using vertical handover [6]. But the mobility management is the main issue in heterogeneous networks that supports the roaming of users from one system to another [7]. The vertical handover involves procedures of registration, binding, route optimization, and bi-directional tunnelling mode so that transition between heterogeneous access technologies is transparent to user [5]. Consequently, many wireless technologies, such as 3rd Generation (3G), Worldwide Interoperability for Microwave

International Journal of Electronics and Communication Engineering & Technology (IJECET), ISSN 0976 – 6464(Print), ISSN 0976 – 6472(Online), Volume 5, Issue 6, June (2014), pp. 67-74 © IAEME  Access (WiMAX), Wireless LAN (WLAN), Universal Mobile Telecommunications System (UMTS) are emerging to satisfy the users’ growing requirements to provide anytime and anywhere access to the Internet. 68  Even though, the wired network has benefits like less packet loss, more security and less delay, it has its main drawback as immobility which makes the wireless network to be prominent since it supports mobility. Nowadays, the voice and video transmission is widespread among the mobile users. In this case, the effective quality of speech at the destination side is more essential. The quality of speech in any network is determined by using Mean Opinion Score (MOS) value, delay, jitter [1] while quality of service of any network can be determined in terms of load, delay and throughput as well. In this paper we have integrated three wireless technologies (WLAN, WIMAX and UMTS) in a network and analyzed its performance for voice application. The analysis is done on the basis of MOS value, delay, jitter, load, throughput and mobility. As the mobile terminal moves in such an integrated network its point of connectivity to access point may shift from one access point to another. This process of change of access point is known as handover. In WLAN network handover can be found through its AP connectivity while in Wimax handovers can be found by its mobility. In UMTS, handovers can be found as active cell count in UMTS handover. INTEGRATION OF VARIOUS WIRELESS NETWORKS In this paper implementation of three wireless technologies WLAN, WIMAX and UMTS have been implemented on OPNET Modeller. The simulation is done in 2 parts having seven scenarios: 1) Network implementation using same wireless technology • Implementation of WLAN network in 7- cell structure • Implementation of WiMAX network in 7- cell structure • Implementation of UMTS network in 7-cell structure 2) Network implementation using different wireless technologies • Integration of WLAN- WiMAX • Integration of WLAN-UMTS • Integration of WiMAX-UMTS • Integration of WLAN-WiMAX-UMTS In scenarios of first part the simulation is performed with three applications Voice, Video and FTP while for scenarios in second part voice application is used for performance application. SIMULATION RESULTS FOR INDIVIDUAL NETWORKS Fig. 1, 2 and 3 shows WLAN, WiMAX and UMTS network structure used in this work in 7- cell structure. In WLAN each cell has four mobile workstations connected with one base staion while in WiMAX network each cell has 5 mobile workstations with one access point. UMTS network 7 cell structure shown in figure 2. Each cell can have 1 or more NODE B.

International Journal of Electronics and Communication Engineering & Technology (IJECET), ISSN 0976 – 6464(Print), ISSN 0976 – 6472(Online), Volume 5, Issue 6, June (2014), pp. 67-74 © IAEME  Figure 1: Implementation of WLAN Figure 2: Implementation of WiMAX Figure 3: Implementation of UMTS 69

International Journal of Electronics and Communication Engineering & Technology (IJECET), ISSN 0976 – 6464(Print), ISSN 0976 – 6472(Online), Volume 5, Issue 6, June (2014), pp. 67-74 © IAEME  Figure 4: Voice jitter in WLAN, WiMAX and UMTS Table no. 1 Parameters WLAN WiMAX UMTS Voice Jitter -0.001 sec 0 sec 0.33 sec Voice MOS value 2.4 3.7 1.6 Delay Max- 2.2 sec 0.3 sec 0.2 sec 70 Min- 0.4 sec Voice jitter for WLAN, WiMAX and UMTS is shown in figure 4 and voice MOS value for WLAN, WiMAX and UMTS is shown in figure 5. The value for voice jitter should be low and voice MOS value should be high. MOS value is in between 1 to 5. MOS value five is excellent and 1 is poor. Figure 5: Voice MOS value in WLAN, WiMAX and UMTS

International Journal of Electronics and Communication Engineering & Technology (IJECET), ISSN 0976 – 6464(Print), ISSN 0976 – 6472(Online), Volume 5, Issue 6, June (2014), pp. 67-74 © IAEME  SIMULATION RESULTS FOR HETROGENEOUS NETWORKS In scenarios 4, 5, 6 and 7 the simulation is done by using voice application. In this integrated network, the users can get signal from WiMAX or WLAN (depends on 71 signal strength). Figure 6: Implementation of WLAN-WiMAX In this scenario, four UMTS architectures are integrated with the WLAN architecture. So the users can utilize either UMTS or WLAN which depends on the signal strength. Figure 7: Implementation of WLAN-UMTS In this scenario user equipment can use UMTS or WiMAX, which depends on the signal strength. Figure 8: Implementation of WiMAX-UMTS

International Journal of Electronics and Communication Engineering & Technology (IJECET), ISSN 0976 – 6464(Print), ISSN 0976 – 6472(Online), Volume 5, Issue 6, June (2014), pp. 67-74 © IAEME  Figure 9: Voice jitter in WLAN-WiMAX, WLAN-UMTS, WiMAX-UMTS Figure 10: MOS value in WLAN-WiMAX, WLAN-UMTS, WiMAX-UMTS Table no. 2 Parameters WLAN-WiMAX WLAN-UMTS WIMAX-UMTS Voice Jitter 0 sec 0 sec 0.09 sec MOS value 3.6 Max-3.1 72 Min-1.5 1

International Journal of Electronics and Communication Engineering & Technology (IJECET), ISSN 0976 – 6464(Print), ISSN 0976 – 6472(Online), Volume 5, Issue 6, June (2014), pp. 67-74 © IAEME  A combination of all three networks WLAN, WiMAX and UMTS is shown in the figure. Figure 11: WLAN-WiMAX-UMTS implementation Figure 12: Voice jitter and MOS value for WLAN-WiMAX-UMTS Figure 13: Load in WLAN-WiMAX-UMTS 73

International Journal of Electronics and Communication Engineering & Technology (IJECET), ISSN 0976 – 6464(Print), ISSN 0976 – 6472(Online), Volume 5, Issue 6, June (2014), pp. 67-74 © IAEME  74  Table no. 3 Parameters WLAN-WiMAX-UMTS Voice Jitter Max-0.0036 sec Min-0.0001 sec Voice MOS value 3.4 Load 130 bps (WiMAX) 68,000 bps (WLAN) CONCLUSION AND FUTURE WORK In this paper, we present a performance analysis of various types of wireless networks with many applications using OPNET simulator. The simulation results show that the WiMAX performance is good as compared with WLAN and UMTS for voice application and in heterogeneous networks, WLAN-WiMAX network gives the best results among all heterogeneous networks with 0 sec of jitter and maximum value of MOS. For future work number of networks in a structure can be increased and simulated with different applications. The simulation time can also be increased for performance evaluation. REFERENCES 1. Dheyaa Jasim Kadhim, Sanaa Shaker Abed, “Performance and handoff evaluation of hetrogeneous wireless networks (HWNS) using OPNET Simulator”, International Journal of Electronics and Communication Engineering and Technology (IJECET), Vol. 4, Issue 2, April, 2013, pp. 477-496. 2. Karthika A L, Sumithra M G, Shanmugam, “ Performance of voice in integrated WiMAX-WLAN and UMTS-WLAN” International Journal of Innovative Research in Science, Engineering and Technology Vol. 2, Issue 4, April 2013. 3. L. Nithyanandan and I. Parthiban, “Vertical Handoff in WLAN-WiMAX-LTE Heterogeneous Networks through Gateway Relocation” International Journal of Wireless & Mobile Networks (IJWMN) Vol. 4, No. 4, August 2012. 4. Mohamed A. Mohamed, Fayez W. Zaki, Ahmed M. Elfeki, “Implementation of VoIP over WiMAX networks” International Journal of Electronics and Communication Engineering & Technology (IJECET), Vol. 3, Issue 2, September 2012, pp. 310-320. 5. Nadia Qasim, “Vertical Handover in Wireless Overlay Networks with Quality of Service Factors” the World Congress on Engineering (WCE) Vol. 2, July, 2011, London, U.K. 6. Iyad Alkhayat, Anup Kumar, Salim Hariri, “End-to-End Mobility Solution for Vertical Handoff between Heterogeneous Wireless Networks” Institute of Electrical and Electronics Engineers (IEEE), 2009. 7. Meriem kassar, Brigitte kervella, Guy pujolle, “An overview of vertical handover decision strategies in heterogeneous wireless networks” ELSEVIER, computer communication, 2008. 8. LI MA, FEI YU, and Victor C. M. Leung, “A new method to support UMTS/WLAN vertical handover using SCT” Institute of Electrical and Electronics Engineers (IEEE), 2004. 9. www.opnet.com. 10. http://en.wikipedia.org/.

Add a comment

Related presentations

Related pages

10120140506003 2-3

10120140506003 2-3
Read more

INTERNATIONAL JOURNAL OF ELECTRONICS AND COMMUNICATION ...

International Journal of Electronics and Communication Engineering & Technology (IJECET), ISSN 0976 – 6464(Print), ISSN 0976 – 6472(Online), Volume 5 ...
Read more

10420140501002 2

10420140501002 2
Read more

Essay Report - scribd.com

2 I. Explanation of the technology of WiMAX: ...
Read more

International journal of Electronics and Communication ...

2: ijecet_06_12_002: ... international journal of electronics and communication engineering and technology (ijecet) ... 40120140506009:
Read more

Chapter 10 - scribd.com

– 10.1.1 MGCP Connection Model and the GSM-IP Architecture 259 – 10.1.2 GSM-IP Message Flows 261 • 10.2 vGPRS: VoIP Service for GPRS 274 – ...
Read more

Tanvir Ijet Amr - es.scribd.com

Tanvir Ijet Amr - Free download as PDF File (.pdf), Text File (.txt) or read online for free.
Read more

NETW 589 Full Class Wireless Communication Ended Feb-2015 ...

NETW 589 Full Class Wireless Communication Ended Feb-2015 Keller - Free download as Word Doc (.doc / .docx), PDF File (.pdf), Text File (.txt) or read ...
Read more