CASE STUDY

Case Study



Abstract

Cybertrans is a logistic company and they want to replace their IT infrastructure in order to operate more efficiently. Currently they are facing some sort of problem with their current infrastructure. They want to utilize wireless technologies. Currently, different wireless technologies (e.g., GSM, CDMA, and TDMA1) are used all through the world for the 2G, 2.5G, and eventually 3G networks. There are two approaches being used to evolve 4G access techniques: 3xRTT (currently 1xRTT for 2.5 and 3G) and Wideband CDMA (W-CDMA). These disparate access techniques actually do not interoperate. This topic may be solved with programs characterized radios.

Table of Contents

Introduction4

Evolution of Network Architectures5

Wireless technologies for Cybertrans12

Satellite and microwave technology for Cybertrans14

Optical fiber technology16

Issues of Cybertrans18

References21

Introduction

As with all technology progressions, the “next” upgrades should be in planning and development stages while its predecessors are being deployed. This declaration retains factual with all wireless telecommunications to date. It seems that it will also contain true for the next generations of wireless networks. The original analog cellular systems are advised the first generation of wireless telephony (1G). In the early 1980s, 1G system was deployed. At the same time, the cellular commerce started developing the second lifetime of mobile telephony (2G). (John 2009 pp. 2)

The distinction between 1G and 2G is in the signaling methods used: 1G used analog indicating, 2G used digital signaling. As experience shows, the lead-time for wireless phone schemes development is about 10 years.

It was not until the early to mid 1990s that 2G was deployed. Primary conceiving and notion development on 3G usually began around 1991 as 2G schemes just begun to roll out. Since the general model of 10 years to develop a new mobile system is being followed, that timeline would suggest 4G should be operational sometime around 2011. 4G would construct on the second phase of 3G, when all systems are expected to adopt Internet protocol (IP) technology. During the last year, businesses such as Ericsson, Motorola, Lucent, Nortel and Qualcomm came up with "3G-plus" notions that would push presentation of accepted, though still emerging, measures beyond current ones. (Richardson 2009 pp. 2)

Evolution of Network Architectures

Cybertrans require one of the most demanding matters opposite deployment of 4G technologies is how to make the mesh architectures matching with each other. New indicating techniques are being conceived expressly to enhance today's second lifetime (2G) networks, consign unprecedented functionality for 3G, and effectively propel the Fourth lifetime (4G) of wireless, therefore delivering direct and long-term benefits to carriers. With the architecture of each generation of wireless apparatus addressed in the development of sophisticated technologies, carriers can effortlessly evolve their schemes without added mesh modifications, considerably reducing costs and implementation time. (Garcia 2002 p.9)

Recommended technology

Link Air Communications is developing a new get access to expertise called large-area-synchronized code-division multiple get access to (LAS-CDMA). LASCDMA will be compatible with all current and future standards, and there is a relatively 1 GSM - Global System for Mobile Communications CDMA - Code Division Multiple ...