SAUSSUREA (ISSN: 0373-2525), 2016

Vol: 6(4):PP.241-248

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RESEARCH ARTICLE

Performance evaluation of UMTS VS WIMAX Wireless Networks

Dr. Riyadh A. Abdulhussein

Al- Mustansiriyah University, Faculty of Engineering, Electrical Engineering

Department, Baghdad, Iraq

Abstract:

Wireless technology playing an important role in communications and permits subscribers to

communicate at anywhere and anytime. It is very necessary to increase the data delivery

quality. This paper analyzes the performances of UMTS network and WiMAX network for

FTP application, and then the WiMAX model and UMTS model are simulated and the

performances are tested by employing the FTP application based upon measurements like

delay and load on networks. Finally, simulation architecture is presented followed by

performance analysis modeled by the OPNET Modeller.

Key Words

Networks, Wireless, UMTS, WiMAX

1. Introduction: In few years past, various types of mobile and wireless networks (e.g. 2G, 3G, WiFi, WiMax, cdma, cdma2000, etc…) have been improved and spread across the world. These networks have various process techniques and have been implemented to work separable without any cooperation each one with the other [1]. The technical radio access ways (WiFi, UMTS and WiMAX) are in challenging with GSM. The 4th generation mobile networks will help users to use mobile services that capable of transmitting voice, images, data and video anywhere and anytime [2]. The 3rd generation UMTS enhanced the coverage area of 20 km (more than that of WLAN) but cower to enhance the data rate which is about 42 Mbps (less than that of WLAN) [3,4]. Therefore, the WiMAX is improved in fourth generation that covers 50km area with data rate of about 1 Gbps. The transmission of UMTS data packets to the users is done by using RNC, SGSN, GGSN and Node B [5], whereas in WiMAX the data transmission is done over Base Station. The main confrontation to next generation wireless network is to achieve QoS under the duty different channel characteristics, various process controls, varying bit data rate, bandwidth allocation procedures, fault tolerant limits and handoff methods, protocols and supports.[1]. In [6,7,8], the performance valuation of supposed architecture of WLAN network and UMTS network was determined with the help of Generic Routing Encapsulation (GRE). Internetworking architecture between WLAN and UMTS is presented in [3] and the multimedia subsystem (IP) supposed by the 3GPP had been used as an arbitrator for coupling network and management of real-time session [9]. The different integration mechanism of UMTS network and WLAN network gives the different results for jitter, MOS value, delay, throughput etc [7,9]. The rest of this paper is arranged as follows: Section II is pointed to the illustration of general concepts of WiMAX and UMTS networks. In Section III, there will be detailed simulation setup for each system networks and discussion of the obtained results. The fourth section presents a conclusion for this paper.

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2. Concepts of UMTS Network and WiMAX Network:

2.1 UMTS network Universal Mobile Telecommunication System (UMTS) is considered as the modern standard of wireless networks, which is called the 3rd generation or 3G, by this technique it possible to forward more data and will permit the existence of multimedia contents on the mobile phones as in video streaming.

2.1.1 UMTS network Architecture A modular and flexible architecture are considered as basic infrastructure of UMTS network. So, these characteristics make it competitive with other wireless networks of 2nd and 3rd generation. UMTS architecture can be described by three main layers subnetwork. The global architecture of a UMTS network is consisting of three sections and shown in Fig.1:

Fig.1: UMTS structure [2] * The equipment user (EU): Its domain includes collection of the terminal equipment. At the same time, it includes the mobile equipment and the USIM. This domain assists the user to follow the infrastructure via the Uu interface. The Universal Subscriber Identity Module (USIM) is an implementation which manages the authentication methods and encryption as well as services to which the user has been subscribed. USIM is a card and called UMTS Integrated Circuit Card (UICC). It can be employed in UMTS terminal regardless of the manufacturer the network operator: guide concatenate a subscriber to one or more service providers and not usually the operator of the instant network [10]. *The universal access network is also called as universal terrestrial radio operator network access (UTRAN); the access network (UTRAN) domain provides to the (EU) the radio link resources and the mechanisms necessary to follow the core of network. The UTRAN calls upon technology UTRA, with its two alternatives FDD and TDD, founded on the access method broad band CDMA [2]. * The Core Network (C N); it contains all the equipment executing the functions of safety system and management of the internetworking by employing external networks.

2.2 WiMAX network

WiMAX aims to provide wireless broadband Internet in radius distance of several kilometers and is purposed primarily for metropolitan networks. With version 802.16e,

SAUSSUREA (ISSN: 0373-2525), 2016

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WiMAX will be available for deployment in laptops with nomadic and mobile usage. Some manufacturers consider thus that the 802.16e standard constitutes an important issue for the launch of 4G mobile [11]. The way for Mobile telephony over IP Mobile is prepared by WiMAX mobile, or more broadly to mobile broadband. The maximum achieved theoretical throughput is (30 Mbps) for a range of (2 to 4 Kilometers) without existence of obstacles. The table shown below illustrates the technical specifications of the substantial standards namely IEEE 802.16x.

Table 1: Technical specificities of the IEEE 802.16x various standards [2]

2.3 UMTS Network versus WiMAX Network

The different characteristics of both technologies are outlined in Table 2.

3. Simulation Setup UMTS mobile and WiMAX mobile architectures are represented in figure 2 and figure 3

respectively. The parameters that are used for the simulation scenario are shown in Table 3. The

UMTS mobile and WiMAX mobile networks are simulated and compared by using OPNET

Modeller [12]. The simulation is done for FTP application. The behavior of these two systems is

evaluated according to load, and average response time parameters.

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Table 2: UMTS versus WiMAX Networks [2]

Table 3: parameters

Parameters WiMAX UMTS

No. of nodes WiMAX-2 UMTS-2

nodes Mobility Fixed Fixed

Traffic Type ftp ftp

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Router Cisco Cisco

Simulation time (1/4) hour (1/4) hour

Fig.2: UMTS network The average FTP signal traffic received is shown in Fig. 4. It is clear from the figure that the

average load of ftp for WiMAX network is greater than the average load of UMTS network. The

data drop was very low as compared with [3,9].

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Fig.3: WiMAX network

Fig.4: average FTP load in UMTS mobile and WiMAX mobile networks Fig. 5 shows the average signal traffic received in remote login. Also, the data drop was very low

compared with [3,9].

Fig.5: average load in UMTS mobile and WiMAX mobile networks in remote login

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The delay in the UMTS mobile and WiMAX mobile networks is shown Fig. 6. From this Figure,

the average FTP delay of the UMTS network is more greater than the delay of the WiMAX

network compared with [3,9].

Fig.6: Average FTP Delay in UMTS mobile and WiMAX networks The delay in remote login for the WiMAX mobile and UMTS mobile networks is shown in Fig.7.

From this Figure, also the average delay of the UMTS network is more greater than the delay of

the WiMAX network compared with [3,9].

Fig.7: Average Delay in UMTS mobile and WiMAX mobile networks

4. Conclusion

This paper extends a performance analysis comparison between UMTS mobile and WiMAX

mobile for FTP application by employing OPNET Modeller. From the simulation results, the

average delay and load of WiMAX network with ftp application are better compared to the UMTS

network. For performance evaluation, the simulation time can be increased further.

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