IOSR Journal of Electrical and Electronics Engineering (IOSRJEEE) ISSN: 2278-1676 Volume 1, Issue 2 (May-June 2012), PP 39-45 www.iosrjournals.org www.iosrjournals.org 39 | Page Interrelationship Superstructure for Mobile Communications Maninder Kaur, Arthi Srivastava, Abhishek Ganu (ECE/Keshav Memorial Institute of Technology/JNTU/India) (CSE/KMIT/JNTU/India) (CSE/KMIT /JNTU/India) Abstract: This article describes suitable network architecture for the mobile communications system beyond IMT-2000. Recent rapid developments in mobile communication services have significantly altered the lifestyles of many people. With the increasing demand for access to the Internet, the amount of data traffic in mobile communication networks has significantly increased and will dominate these networks. Therefore, mobile networks beyond IMT-2000 should offer higher bit rate channels and adapt to multimedia traffic more efficiently. This article first forecasts market trends in mobile communications in order to identify requirements of the mobile communications system beyond IMT-2000. Then the article considers the network architecture of the mobile communications system beyond IMT-2000 that will satisfy those requirements. Keywords: Architecture, IMT 2000, Multimedia traffic, Network architecture I. Introduction The concept of “anytime, anywhere, anyone” was realized by the development of mobile communications systems for voice communications. Initially, mobile communication systems were mainly used by a few people as a complement to fixed telephone communications., the number of subscribers has significantly increased, driven by the continuous development of mobile technologies, the expansion of service areas, the introduction of compact terminals, and the increased popularity of mobile communications among the younger generation. Data communication services through mobile networks have attracted many people to the WWW and have promoted the exchange of e-mail. These services are now expected to change people‟s lifestyles dramatically through further development of mobile communication technologies. Thus, the status of services of mobile communication systems is changing from “complementary” to “requisite” and their role is expanding from “handy phone” to “private information infrastructure.” Figure 1. Basic Network The third-generation (3G) system known as the IMT-2000, which will be introduced in 2001, will enhance the ability of data communications. The system offers channels of less than 2 Mb/s when subscribers move at vehicular speeds. Therefore, the mobile communications system beyond IMT-2000 (4G) should be designed to offer significantly higher bit rates than 2 Mb/s even in a vehicular environment and to adapt to data communications more efficiently to realize the concept of “anytime, anywher e, anyone, and anything” from the viewpoint of multimedia communications. This article first forecasts market trends in mobile communications in order to identify requirements of the mobile communications beyond IMT-2000. The article proposes a 4G-systemn network architecture that satisfies those requirements.