ABSTRACT
Due to the growing penetration of cellular services, the ITU projects that by 2008 there will be more mobile than fix-line subscribers, perhaps as many as a billion cellular subscribers. The fast-paced growth in global wireless services has greatly impacted the expansion of wireless data communications. This is not to say that wireless systems in support of data communication requirements have not been around for some time; it just was not embraced as an enterprise network solution.
