... portable telephone that works using a series of radio networks or cells. The term "cell- refers to the geographical area covered by the network base station that contains the radio equipment serving the cell. Australians commonly refer to this device as their "mobile-, while in the USA its known as a "cell phone-. Mobile phones are essentially a type of radio. With ground based mobile networks, the ... phones exchange radio signals with towers within geographical "cells-. A phone can pass from one cell to another without losing the call. Mobile phones are able to use one frequency for ta...

• Word Count: 3397
• Approx Pages: 14

... overlap, the BTSs will divide their area of coverage up into sections. This also aids in mobile device handoff as it moves from cell to cell. BTSs in GSM networks continuously transmit RF signals on a control frequency for MCDs to detect while mobile stations are continuously scanning the forward ... control channel (FCC) for paging signals from base stations. The MCD, BSS and MSC are the components that primarily handle phone calls and text messaging. When ... is narrowed down and the precision is limited by the cell size.Localization or triangulation of BTSs and signal strengths are o...

• Word Count: 5242
• Approx Pages: 21
• Has Bibliography
• Grade Level: Undergraduate

Introduction PDA's or "personal digital assistants," are handheld devices that function in several capacities: as a cell phone, fax sender and personal organizer, among other things. PDA's use a stylus, or pen, rather than a keyboard (www.darwinmag.com). The topics discussed in this ... dependent on IT will be using PDA's (http://advisor.com). Two Well-known Technologies Merge One trend that is emerging is the Smart Phone. Smart Phones will merge the PDA with the cell phone. The manufacturers intend to introduce these to the American market with what they call a "soft" introduction. The strat...

• Word Count: 2879
• Approx Pages: 12
• Has Bibliography
• Grade Level: High School